Eco-Crawler
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Eco-Crawler

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Eco-Crawler - The easiest & strongest gear box for your Toyota 4x4.

At Northwest Fabworks we set out to produce products our customers are as proud to own as we are to make them.  Since 2005 we have poured our passion for manufacturing into the 4x4 industry and continue to set the bar high through responsive support, unmatched quality, and manufacturing our products in house.

Initially working with the domestic transfer case market, we garnered a cult following with our Blackbox, EcoBox and Titan series product lines.  Proven to improve handling and control through selectable gear reduction, our development team set out to bring the same innovation to the much-needed Toyota market, and the Eco-Crawler was born. Existing dual Transfer case or Gearbox options for 1984 – Current VF Chain drive equipped Toyota 4x4’s are either poorly executed, or non-existent. Previous systems required sourcing old gear drive components, purchasing multiple adapters, and the end result was weak, unreliable and excessively long. 

 

How did we do it ?

Instead of utilizing sections of an older transfer case, the EcoCrawler kit provides a new billet aluminum housing that accepts stock VF transfer case planetaries. The housing is a direct fit to the stock transmission, and doesn’t require any shaft adapters or couplers.

Features :

Utilizes the Factory Planetary Gears, Selectable 2.57:1 Low Range

6061-T6 Aluminum Billet Housing

Short - No Longer than 6.5” Overall Length – Maximum Drivetrain Clearance

Strong – 1 Piece output, no splined connection! (Excluding RF1A)

Simple – No additional adapters required! Our kits are adapters and under drives all-in-one!

What is Required :

Donor VF Chain Drive Transfer Case for Planetary Gears. - See Chart Below in FAQ for best choice.

*Torsen Type VF Transfer Case are NOT Suitable for donor gears.

*Stock Shift Lever is required if not using NWF Twin or Triple Stick Shifters.

 

How to configure your eco-crawler

The info below will help you configure your Eco-Crawler.

Step 1 - Base Selection/Transfer Case Type Options:

The Eco-Crawler fits the following Transfer Cases at the rear:

RF1A: Requires 23 Spline Input, Top Shift Required

VF1: Top Shift Required, 3VZ-FE Type

VF2: Top Shift or Electric

VF4: Top Shift or Electric

VF4 Torsen: Torsen Equipped Transfer Case, common to 4-Runner, Sequoia, GX460/70. Sequoia and GX470 must convert to top shift.

Ford NP205: Use Married Type

GM / Dodge Fig.8 Large Bore: 90mm Input Bearing

GM / Dodge Fig.8 Small Bore: 80mm Input Bearing

Atlas 6 Bolt 6 Spline: Verified by Serial Number

Atlas 6 Bolt 32 Spline: Verified by Serial Number

Atlas 8 Bolt 32 Spline Verified by Serial Number

Dana 300: Jeep Type

 

Step 2 - Transmission Bolt Pattern Options:

VF1: 88-95 4-Runner/Pickup (G58, R150F) (Does NOT fit 3VZ-FE Automatic Transmission)

VF2: 96-02 4-Runner, 95.5-04 Tacoma, 00-04 Tundra/Sequoia

VF4: 03+ 4-Runner, 05+ Tacoma, 06+ FJ Cruiser, 03+ Lexus GX, 05-07 Sequoia, 05-06 Tundra 

 

Step 3 - Eco-Crawler Shifter Interface Options: 

This selection sets the shifter interface type into the Eco-Crawler. Choose one of the 4 options that matches your donor transfer case configuration. Do not use forward shift in place of top shift. 

Forward Shift Ball Type

Forward Shift Spade Type

Top Shift Ball Type

Top Shift Spade Type

One-Touch is a hybrid shift system from Toyota, It uses a manual lever high/low but electric 2wd-4wd.

Forward Shift "J" Shift: Found in 1986-1995 G58 Pickup, 1996-2004 Tacoma /w 3RZ Automatic, and most Hilux.

Forward Shift One-Touch 2-4: Found in GX470 and 00-04 Sequoia

Top Shift "J" Shift: Are full manual shift cases found in 1996-02’s 4-Runner and Tacoma, All FJ Cruisers, and optional on 2010+ 4-Runners.. If your VF case was originally all electric, also choose this option.

Top Shift One-Touch 2-4: Found in late 1990’s and Early 2000’s 4-Runners and Tacoma as a factory installed option.

 

Additional Accessories:

Twin & Triple Shifters - Available End of October

Driveline Park Brake - Coming Soon

Crossmembers & Skids - Coming Soon


MSRP $1599USD – Shipped in USA/CANADA


Technical Specs

Eco-Crawler Total Length

VF1, VF2, VF4

6.5”

RF1A

6.35”

Atlas 6 and 8 bolt

 

4.6”

Ford NP205

6.4”

GM Small/Large Bore

6.4”

Material Type

6061-T6 Aluminum

Gear reduction

Selectable 2.57:1 low range

Approx. Weight

 

Oil Capacity

 

Oil Type

Redline MT-90 or factory recommended chain drive oil

 

Frequently Asked Questions :

Question: Does the Eco-Crawler work with my Toyota 4x4? 

Answer: If your Toyota originally had a VF (chain) type transfer case, the Eco-Crawler will work for your vehicle. Compatible vehicles:

-Toyota Pickup /w G58, R150F

-4Runner 1986-1995 /w G58, R150F. 1996+ All

-Tacoma - All years

-FJ Cruiser - All years

-Tundra (Excl. 5.7L)

-Sequoia (Excl. 5.7L)

-Lexus GX470 - All years

-Lexus GX460 - All years

-Hilux – N60 with VF Case, N70

-Surf  with VF

-Prado with VF

 

Question: What is a Toyota VF Transfer Case? 

Answer: The Toyota VF transfer case was the successor to the RF1A gear drive case. In the early 90s Toyota began to phase out the RF1A in favor of the VF series chain-drive in favor of cost, noise, and fuel economy. The VF transfer case has a 2.57:1 low range, both passenger and drivers side drop configurations, and additional features developed to modernize, including electric actuation, and traction control systems.


Question: I thought Gear Drive was the best for a Toyota dual case reduction box? 

Answer: In the 4x4 world of yesterday the RF1A was favored, the gear reduction section was easy to separate from the remainder of the case, lending itself well to adding additional low range sections or ‘doubling’ the cases. Additionally the RF1A was a RH drop transfer case, matching up well to the early solid front axles.

For a period the entire aftermarket was dedicated to the RF1A, it was plentiful and well supported. In 1996 however the magic ended; domestic Toyotas switched to a LH drop transfer case and front end. The RF1A no longer made sense to be used for gear reduction.

Companies entrenched in selling product related to the RF1A made attempts to discredit the VF case, it was in their favor to do so. However, the product provided to continue the use of the RF1A were multiple adapters, weak shafts, and cases prone to failure, The reality was the VF case had a strength edge, was easy to mate to the newer transmissions, but the gear reduction section did not easily separate like its predecessor. Fortunately for Toyota 4x4 owners we at NWF enjoy machining big blocks of 6061 billet!!


Data by Application :

The list below contains the vehicles and factory configurations that are compatible with the Eco-Crawler. This information is an accumulation of various data sources and we always recommend confirming with your own research.

Quick Reference of Compatible vehicles:

-Toyota Pickup, Tacoma, T100, Tundra, 4Runner, FJ Cruiser, Sequoia

-Lexus 450, 460, 470

 

Toyota Pickup:

Toyota Pickup 1988-1995 22RE 4cyl /w 5 Speed G58 M/T /w ADD

-Stock Case: VF1 Forward Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: No – Top Shift Required. Top Shift Conversion Available or use 3VZE type case.


Toyota Pickup 1987-1995 3VZE 3.0 V6 /w 5 Speed M/T R150

-Stock Case VF1 Top Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma:

Toyota Tacoma 1995.5-2004 4Cyl 3RZ /w 5-Speed M/T W59

-Stock Case VF2 Top Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 1995.5-2004 4Cyl 3RZ /w 4 Speed A/T A340F

-Stock Case VF2 Forward Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: No – Top Shift Required. Top Shift Conversion Available or use Manual top shift VF2 J Type.


Toyota Tacoma 1995.5-2004 6Cyl 5VZ-FE /w 4 Speed A/T A340F

-Stock Case VF2 Top Shift J Type Manual, Optional Top Shift 1 Touch 2-4 Hybrid Electric,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 1995.5-2004 6Cyl 5VZ-FE /w 5-Speed M/T R150F

-Stock Case VF2 Top Shift J Type Manual, Optional Top Shift 1 Touch 2-4 Hybrid Electric

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2005-2015 4Cyl 2TR-FE /w 4 Speed A/T A340F

-Stock Case VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2005-2015 4Cyl 2TR-FE /w 5 Speed M/T R155F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2005-2015 6Cyl 1GR-FE /w 4 Speed A/T A750F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2005-2015 6Cyl 1GR-FE /w 6 Speed M/T RA60

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes


Toyota Tacoma 2016+ 4Cyl 2TR-FE /w A/T AC60F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2016+ 4Cyl 2TR-FE /w M/T R156F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2016+ 6Cyl 2GR-FKS /w 4 Speed A/T A750F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2005-2015 6Cyl 2GR-FKS /w 6 Speed M/T RC62F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota T100:

-Toyota T100 – Reference same year Pickup/Tacoma

 

Toyota Tundra:

Toyota Tundra 2000-2004 6Cyl 5VZ-FE  A/T A340F

-Stock Case VF2 Forward Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: No – Top Shift Required. Top Shift Conversion Available or use Manual top shift VF2 J Type.


Toyota Tundra 2000-2004 6Cyl 5VZ-FE  M/T R150F

-Stock Case VF2 Top Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes


Toyota Tundra 2000-2004 8Cyl 2UZ-FE  A/T A340F

-Stock Case VF2 All Electric

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes.

 

Toyota Hilux (coming soon):

Data To Be Added

-N60 /w VF Case.

-N70 /w VF Case

 

Toyota 4-Runner:

4Runner 1988-1995 22RE 4cyl /w 5 Speed G58 /w ADD

-Stock Case: VF1 Forward Shift J Type Manual Shift, 26 Spline Input

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: No – Top Shift Required. Top Shift Conversion Available or use VF1 from 3VZ-FE.

 

4Runner 1987-1995 3VZ-FE 3.0 V6 /w R150 – 5 Speed – All

-Stock Case VF1 Top Shift J Type Manual

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes


4Runner 1988-1995 22RE 4cyl /w 5 Speed G58 /w ADD

-Stock Case: VF1 Forward Shift

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: No – Top Shift Required


Toyota 4Runner 1996-2002 4Cyl 3RZ /w 5-Speed M/T W59

-Stock Case VF2 Top Shift J Type Manual or One-Touch 2-4

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes. One Touch 2-4 type case Actuator may interfere with gas tank.


Toyota 4Runner 1996-2002 4Cyl 3RZ /w 4 Speed A/T A340F

-Stock Case VF2 Top Shift J Type Manual or One-Touch 2-4

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes. One Touch 2-4 type case Actuator may interfere with gas tank.


Toyota 4Runner 1996-2002 6Cyl 5VZE-FE /w 4 Speed A/T A340F

-Stock Case VF2 Top Shift J Type Manual or One-Touch 2-4

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes. One Touch 2-4 type case Actuator may interfere with gas tank.


Toyota 4Runner 1996-2002 6Cyl 5VZE-FE  /w 5 Speed M/T R150F

-Stock Case VF2 Top Shift J Type Manual or One-Touch 2-4

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes. One Touch 2-4 type case Actuator may interfere with gas tank.


Toyota 4Runner 2003-2009 6Cyl 1GR-FE  A/T A750F

-Stock Case VF4 Electric Torsen Type, Electric Shift

-Stock Case OK For Eco-Crawler Donor: No

-Stock Case OK For Rear Case: Yes. Stock Electric Actuator case may interfere with gas tank.


Toyota 4Runner 2003-2009 6Cyl 2UZ-FE  A/T A750F

-Stock Case VF4 Torsen Type, Electric Shift

-Stock Case OK For Eco-Crawler Donor: No

-Stock Case OK For Rear Case: Yes. Stock case Electric Actuator may interfere with gas tank.

 

Toyota 4Runner 2010+ 6Cyl 1GR-FE A/T A750F

-Stock Case VF4 Electric Torsen Type

-Stock Case OK For Eco-Crawler Donor: No

-Stock Case OK For Rear Case: Yes. Stock case Electric Actuator may interfere with gas tank.

 

Toyota 4Runner 2010+ 6Cyl 1GR-FE A/T A750F – TRAIL  / TRD /w  MANUAL SHIFT T CASE

-Stock Case VF4 Pattern Manual Shift

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes.

 

Toyota FJ Cruiser:

Toyota FJ Cruiser 2006+ 6Cyl 1GR-FE A/T A750F

Stock Case VF4 Pattern Manual Shift

Stock Case OK For Eco-Crawler Donor: Yes

Stock Case OK For Rear Case: Yes.

 

Toyota FJ Cruiser 2006+ 6Cyl 1GR-FE /w 6 Speed M/T RA60

Stock Case:  VF4 Pattern, Manual Shift Torsen Type

Stock Case OK For Eco-Crawler Donor:  No – Use Transfer case from RA60 type Tacoma + Requires Manual Shift Parts

Stock Case OK For Rear Case: Yes Stock case may interfere with gas tank. Relocate Gas Tank or swap in Non-Torsen Type Transfer Case.

 

Toyota Sequoia:

Toyota Sequoia 2000-2004 8Cyl 2UZ-FE  A/T A340F

Stock Case VF2 One-Touch Manual Forward Shift, Electric High/Low

Stock Case OK For Eco-Crawler Donor: Yes

Stock Case OK For Rear Case: No – Requires Top Shift Conversion Kit

 

Toyota Sequoia 2005-2006 8Cyl 2UZ-FE  A/T A340F

Stock Case VF4 All Electric – Torsen TBD

Stock Case OK For Eco-Crawler Donor: Yes

Stock Case OK For Rear Case: Yes – Requires Manual Shift Parts

 

Lexus LX450/470:

Lexus LX450/470

Data To Be Added

 

Lexus GX470:

Lexus GX470 2003-2009 8Cyl 2UZ-FE  A/T A750F

Stock Case VF4 One-Touch Manual Forward Shift, Electric High/Low Torsen Type

Stock Case OK For Eco-Crawler Donor: No

Stock Case OK For Rear Case: Yes. Stock case Electric Actuator may interfere with gas tank. – Use Aftermarket Tank or Swap to Manual Shift Case. 

 

Lexus GX460:

Lexus GX460 2010+ 6Cyl 1GR-FE A/T A750F

Stock Case VF4 Electric Torsen Type

Stock Case OK For Eco-Crawler Donor: No

Stock Case OK For Rear Case: Yes. Stock case Electric Actuator may interfere with gas tank.

Features

Eco-Crawler Total Length

VF1, VF2, VF4

6.5”

RF1A

6.35”

Atlas 6 and 8 bolt

 

4.6”

Ford NP205

6.4”

GM Small/Large Bore

6.4”

Material Type

6061-T6 Aluminum

Gear reduction

Selectable 2.57:1 low range

Approx. Weight

 

Oil Capacity

 

Oil Type

Redline MT-90 or factory recommended chain drive oil

Technical Specs

Utilizes the Factory Planetary Gears, Selectable 2.57:1 Low Range

6061-T6 Aluminum Billet Housing

Short - No Longer than 6.5” Overall Length – Maximum Drivetrain Clearance

Strong – 1 Piece output, no splined connection! (Excluding RF1A)

Simple – No additional adapters required! Our kits are adapters and under drives all-in-one!

Fitment

The list below contains the vehicles and factory configurations that are compatible with the Eco-Crawler. This information is an accumulation of various data sources and we always recommend confirming with your own research.

Quick Reference of Compatible vehicles:

-Toyota Pickup, Tacoma, T100, Tundra, 4Runner, FJ Cruiser, Sequoia

-Lexus 450, 460, 470

 

Toyota Pickup:

Toyota Pickup 1988-1995 22RE 4cyl /w 5 Speed G58 M/T /w ADD

-Stock Case: VF1 Forward Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: No – Top Shift Required. Top Shift Conversion Available or use 3VZE type case.


Toyota Pickup 1987-1995 3VZE 3.0 V6 /w 5 Speed M/T R150

-Stock Case VF1 Top Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma:

Toyota Tacoma 1995.5-2004 4Cyl 3RZ /w 5-Speed M/T W59

-Stock Case VF2 Top Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 1995.5-2004 4Cyl 3RZ /w 4 Speed A/T A340F

-Stock Case VF2 Forward Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: No – Top Shift Required. Top Shift Conversion Available or use Manual top shift VF2 J Type.


Toyota Tacoma 1995.5-2004 6Cyl 5VZ-FE /w 4 Speed A/T A340F

-Stock Case VF2 Top Shift J Type Manual, Optional Top Shift 1 Touch 2-4 Hybrid Electric,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 1995.5-2004 6Cyl 5VZ-FE /w 5-Speed M/T R150F

-Stock Case VF2 Top Shift J Type Manual, Optional Top Shift 1 Touch 2-4 Hybrid Electric

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2005-2015 4Cyl 2TR-FE /w 4 Speed A/T A340F

-Stock Case VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2005-2015 4Cyl 2TR-FE /w 5 Speed M/T R155F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2005-2015 6Cyl 1GR-FE /w 4 Speed A/T A750F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2005-2015 6Cyl 1GR-FE /w 6 Speed M/T RA60

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes


Toyota Tacoma 2016+ 4Cyl 2TR-FE /w A/T AC60F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2016+ 4Cyl 2TR-FE /w M/T R156F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2016+ 6Cyl 2GR-FKS /w 4 Speed A/T A750F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota Tacoma 2005-2015 6Cyl 2GR-FKS /w 6 Speed M/T RC62F

-Stock Case:  VF4 Pattern, All Electric Shift

-Stock Case OK For Eco-Crawler Donor: Yes – Requires Manual Shift Parts

-Stock Case OK For Rear Case: Yes

 

Toyota T100:

-Toyota T100 – Reference same year Pickup/Tacoma

 

Toyota Tundra:

Toyota Tundra 2000-2004 6Cyl 5VZ-FE  A/T A340F

-Stock Case VF2 Forward Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: No – Top Shift Required. Top Shift Conversion Available or use Manual top shift VF2 J Type.


Toyota Tundra 2000-2004 6Cyl 5VZ-FE  M/T R150F

-Stock Case VF2 Top Shift J Type Manual,

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes


Toyota Tundra 2000-2004 8Cyl 2UZ-FE  A/T A340F

-Stock Case VF2 All Electric

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes.

 

Toyota Hilux (coming soon):

Data To Be Added

-N60 /w VF Case.

-N70 /w VF Case

 

Toyota 4-Runner:

4Runner 1988-1995 22RE 4cyl /w 5 Speed G58 /w ADD

-Stock Case: VF1 Forward Shift J Type Manual Shift, 26 Spline Input

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: No – Top Shift Required. Top Shift Conversion Available or use VF1 from 3VZ-FE.

 

4Runner 1987-1995 3VZ-FE 3.0 V6 /w R150 – 5 Speed – All

-Stock Case VF1 Top Shift J Type Manual

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes


4Runner 1988-1995 22RE 4cyl /w 5 Speed G58 /w ADD

-Stock Case: VF1 Forward Shift

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: No – Top Shift Required


Toyota 4Runner 1996-2002 4Cyl 3RZ /w 5-Speed M/T W59

-Stock Case VF2 Top Shift J Type Manual or One-Touch 2-4

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes. One Touch 2-4 type case Actuator may interfere with gas tank.


Toyota 4Runner 1996-2002 4Cyl 3RZ /w 4 Speed A/T A340F

-Stock Case VF2 Top Shift J Type Manual or One-Touch 2-4

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes. One Touch 2-4 type case Actuator may interfere with gas tank.


Toyota 4Runner 1996-2002 6Cyl 5VZE-FE /w 4 Speed A/T A340F

-Stock Case VF2 Top Shift J Type Manual or One-Touch 2-4

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes. One Touch 2-4 type case Actuator may interfere with gas tank.


Toyota 4Runner 1996-2002 6Cyl 5VZE-FE  /w 5 Speed M/T R150F

-Stock Case VF2 Top Shift J Type Manual or One-Touch 2-4

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes. One Touch 2-4 type case Actuator may interfere with gas tank.


Toyota 4Runner 2003-2009 6Cyl 1GR-FE  A/T A750F

-Stock Case VF4 Electric Torsen Type, Electric Shift

-Stock Case OK For Eco-Crawler Donor: No

-Stock Case OK For Rear Case: Yes. Stock Electric Actuator case may interfere with gas tank.


Toyota 4Runner 2003-2009 6Cyl 2UZ-FE  A/T A750F

-Stock Case VF4 Torsen Type, Electric Shift

-Stock Case OK For Eco-Crawler Donor: No

-Stock Case OK For Rear Case: Yes. Stock case Electric Actuator may interfere with gas tank.

 

Toyota 4Runner 2010+ 6Cyl 1GR-FE A/T A750F

-Stock Case VF4 Electric Torsen Type

-Stock Case OK For Eco-Crawler Donor: No

-Stock Case OK For Rear Case: Yes. Stock case Electric Actuator may interfere with gas tank.

 

Toyota 4Runner 2010+ 6Cyl 1GR-FE A/T A750F – TRAIL  / TRD /w  MANUAL SHIFT T CASE

-Stock Case VF4 Pattern Manual Shift

-Stock Case OK For Eco-Crawler Donor: Yes

-Stock Case OK For Rear Case: Yes.

 

Toyota FJ Cruiser:

Toyota FJ Cruiser 2006+ 6Cyl 1GR-FE A/T A750F

Stock Case VF4 Pattern Manual Shift

Stock Case OK For Eco-Crawler Donor: Yes

Stock Case OK For Rear Case: Yes.

 

Toyota FJ Cruiser 2006+ 6Cyl 1GR-FE /w 6 Speed M/T RA60

Stock Case:  VF4 Pattern, Manual Shift Torsen Type

Stock Case OK For Eco-Crawler Donor:  No – Use Transfer case from RA60 type Tacoma + Requires Manual Shift Parts

Stock Case OK For Rear Case: Yes Stock case may interfere with gas tank. Relocate Gas Tank or swap in Non-Torsen Type Transfer Case.

 

Toyota Sequoia:

Toyota Sequoia 2000-2004 8Cyl 2UZ-FE  A/T A340F

Stock Case VF2 One-Touch Manual Forward Shift, Electric High/Low

Stock Case OK For Eco-Crawler Donor: Yes

Stock Case OK For Rear Case: No – Requires Top Shift Conversion Kit

 

Toyota Sequoia 2005-2006 8Cyl 2UZ-FE  A/T A340F

Stock Case VF4 All Electric – Torsen TBD

Stock Case OK For Eco-Crawler Donor: Yes

Stock Case OK For Rear Case: Yes – Requires Manual Shift Parts

 

Lexus LX450/470:

Lexus LX450/470

Data To Be Added

 

Lexus GX470:

Lexus GX470 2003-2009 8Cyl 2UZ-FE  A/T A750F

Stock Case VF4 One-Touch Manual Forward Shift, Electric High/Low Torsen Type

Stock Case OK For Eco-Crawler Donor: No

Stock Case OK For Rear Case: Yes. Stock case Electric Actuator may interfere with gas tank. – Use Aftermarket Tank or Swap to Manual Shift Case. 

 

Lexus GX460:

Lexus GX460 2010+ 6Cyl 1GR-FE A/T A750F

Stock Case VF4 Electric Torsen Type

Stock Case OK For Eco-Crawler Donor: No

Stock Case OK For Rear Case: Yes. Stock case Electric Actuator may interfere with gas tank.

Common Questions

Question: Does the Eco-Crawler work with my Toyota 4x4? 

Answer: If your Toyota originally had a VF (chain) type transfer case, the Eco-Crawler will work for your vehicle. Compatible vehicles:

-Toyota Pickup /w G58, R150F

-4Runner 1986-1995 /w G58, R150F. 1996+ All

-Tacoma - All years

-FJ Cruiser - All years

-Tundra (Excl. 5.7L)

-Sequoia (Excl. 5.7L)

-Lexus GX470 - All years

-Lexus GX460 - All years

-Hilux – N60 with VF Case, N70

-Surf  with VF

-Prado with VF

 

Question: What is a Toyota VF Transfer Case? 

Answer: The Toyota VF transfer case was the successor to the RF1A gear drive case. In the early 90s Toyota began to phase out the RF1A in favor of the VF series chain-drive in favor of cost, noise, and fuel economy. The VF transfer case has a 2.57:1 low range, both passenger and drivers side drop configurations, and additional features developed to modernize, including electric actuation, and traction control systems.


Question: I thought Gear Drive was the best for a Toyota dual case reduction box? 

Answer: In the 4x4 world of yesterday the RF1A was favored, the gear reduction section was easy to separate from the remainder of the case, lending itself well to adding additional low range sections or ‘doubling’ the cases. Additionally the RF1A was a RH drop transfer case, matching up well to the early solid front axles.

For a period the entire aftermarket was dedicated to the RF1A, it was plentiful and well supported. In 1996 however the magic ended; domestic Toyotas switched to a LH drop transfer case and front end. The RF1A no longer made sense to be used for gear reduction.

Companies entrenched in selling product related to the RF1A made attempts to discredit the VF case, it was in their favor to do so. However, the product provided to continue the use of the RF1A were multiple adapters, weak shafts, and cases prone to failure, The reality was the VF case had a strength edge, was easy to mate to the newer transmissions, but the gear reduction section did not easily separate like its predecessor. Fortunately for Toyota 4x4 owners we at NWF enjoy machining big blocks of 6061 billet!!


Common Questions

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