Trail-Creeper 4.7 Transfer Cases

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Trail-Creeper 4.7 Transfer Case

Trail Creeper™ 4.7 Single Transfer Cases

If you have a 4-cylinder 1979-1995 Toyota Pickup or a 4 cylinder 1985-1995 4Runner, as long as the truck didn't have Automatic Differential Disconnect (ADD), the stock transfer case in the vehicle was a gear-driven RF1A with a 2.28:1 low range gear ratio.  

It doesn't take long to realize that a 2.28:1 low range is too high for some terrain.  More than twice the torque at half the speed can be achieved with 4.7:1 gear set in your transfer case.

While you could remove your T-case, drag it to the workbench and replace the 2.28 gears with 4.7 gears yourself,  spend more time on the trail by simply replacing your stock RF1A with our fully-built Trail-Creeper™ 4.7 Transfer Case.

Additionally, as shown in the Transmission Matrix below, our Trail-Creeper™ 4.7 Single Transfer Case can replace the VF1A chain-drive transfer case in a V6 Pickup or 4Runner when installed with the V6 Adapter Kit (SKU: 100086-1-KIT).

We manufacture 12 different variations of this transfer case.  Choosing the right variation for your application requires defining the following three options:

Input Gear:  [21-Spline or 23-Spline]

Shifter Options:  [Top Shift,  Foward Shift 4" Offset or Forward Shift 4.5" Offset] - Top shift T-cases have the shifter(s) on top of the transfer case. Forward Shift T-cases have protruding shift forks that attach to shifter(s) mounted on the transmission.

Single or Twin Stick:  [Single Stick Only or Twin Stick Ready (Loose Interlock Pin)] - A twin-stick allows independent control of low/high range and 2WD/4WD engagement.  With a twin-stick configuration you can switch between 2WD and 4WD without stopping and access 2WD Low-Range for better handling when traveling between obstacles on a trail.

The transmission matrix below will assist you in determining which input gear and shifter options are compatible with your transmission.  It is up to you whether you opt for a single or twin-stick configuration to control your transfer case (as long as you don't have a W56-C, D or E transmission that REQUIRES Single Stick).

transmission matrix
year(s) transmission(s) input gear shifter Options special notes
79-83 L43/L45/L50/L52 21-Spline Top Shift  
8/83-88 G52/G54 21-Spline Forward Shift-4.5" Offset  
85-88 W56A/B 21-Spline Top Shift  
86-87 R151F 23-Spline Forward Shift-4.5" Offset Bench Seat Models
86-87 R151F 23-Spline Top Shift Bucket Seat Models
88-95 R150F 23-Spline Top Shift This transmission was originally sandwiched between a 3VZ-E V6 engine and a VF1A chain-drive transfer case. Replacing this transfer case with a Trail-Creeper™ 4.7 Single Transfer Case requires our V6 adapter kit (SKU: 100086-1-KIT)
89-95 W56-C/D/E 21-Spline Forward Shift-4" Offset Single Stick ONLY!



If your adventures lead you to places where even a 4.7:1 transfer case gear ratio is insufficient, you can combine this case with our Trail-Creeper™ 2.28 Crawl Box to create a dual transfer case.

Please NOTE:

  • Our Trail-Safe™ T-case Output Seal will be included and installed at no additional cost.
  • If you are unsure if you have the 4" or 4.5" Forward Shift transfer case, please refer to the comparison image at the top of the page.
  • While these transfer cases ship with a new shifter base, neither the [Single Stick Only] cases nor the [Twin Stick Ready] cases ship with shifters.  Shifters must be purchased separately if needed (see "Related Products" below).

$400 CREDIT FOR CORES: We're giving $400 store credit in exchange for old t-case cores. Contact our sales team today for more details.
NOTE: Only usable gear-driven cores will be accepted (subject to inspection). Participants must ship used cores at their own expense (no COD shipments accepted). Limited time offer subject to cancellation.

⚠ WARNING Cancer and Reproductive Harm -

  • Features a 4.70 low range gear set
  • Each case is fully rebuilt and inspected
  • Triple drilled flanges are installed on both front and rear output
  • Available with 21 or 23 spline input gear
  • Choice of Top Shift, Forward Shift 4-Inch Offset or Forward Shift 4.5-Inch Offset
  • Choice of Single or Twin-Stick-Ready (Loose Interlock Pin) Configurations
  • Can be installed as a replacement to your stock gear driven transfer case or combined with a crawl box to create a dual transfer case
  • Includes our new Trail-Safe™ T-Case Output Seal


1979 Toyota Pickup
1980 Toyota Pickup
1981 Toyota Pickup
1982 Toyota Pickup
1983 Toyota Pickup
1984 Toyota Pickup
1985 Toyota Pickup
1986 Toyota Pickup
1987 Toyota Pickup
1988 Toyota Pickup
1989 Toyota Pickup
1990 Toyota Pickup
1991 Toyota Pickup
1992 Toyota Pickup
1993 Toyota Pickup
1994 Toyota Pickup
1995 Toyota Pickup


1985 Toyota 4Runner
1986 Toyota 4Runner
1987 Toyota 4Runner
1988 Toyota 4Runner
1989 Toyota 4Runner
1990 Toyota 4Runner
1991 Toyota 4Runner
1992 Toyota 4Runner
1993 Toyota 4Runner
1994 Toyota 4Runner
1995 Toyota 4Runner

NOTE: These transfer cases are shipped with our Triple-Drilled T-case flanges. They can accommodate the following driveline bolt patterns:

  • 70mm x 61.5mm x 10mm bolt
  • 68.3mm x 60mm x 10mm bolt
  • 60mm x 60mm x 10mm bolt

If you have a driveline that uses a different pattern, you will need to change your driveline or use a different driveline flange. We offer blank driveline flanges (302906-1-KIT) that can be drilled to accommodate most patterns (sold separately).

All products carry our 12 Month Limited Warranty. All warranties are limited to the original purchaser and are not transferable to subsequent owners of the product. The warranty period begins on the purchase date. Trail-Gear warrants that it will repair or replace, free of charge, any eligible product which, under normal conditions of use and service, proves to be defective in materials or workmanship. This warranty does not cover any labor costs incurred in diagnosis of defects, removal or reinstallation of a product, nor does it cover any other consequential expenses.

Please read and review our return and warranty requirement document before sending in products.

Warranty Exclusions

Trail-Gear Inc. warranty does not cover, and Trail-Gear Inc. shall not be liable for, any undertaking, representation, or agreements made by dealers or other third parties selling Trail-Gear products, except where such agreements are within the provisions of this Warranty.

Specifically excluded from this warranty are failures caused by lack of maintenance, misuse, negligence, modification, abuse, improper application, crash damage, installation or operation, or failures caused by unauthorized service or use of unauthorized parts.

Additionally excluded from this warranty are parts which are subject to normal wear and tear, such as bushings, fluids, hoses, gaskets, belts, etc. Products not manufactured by Trail-Gear Inc. are excluded from any warranty and shall be handled with the original manufacturer.

All parts used in a competitive racing environment are excluded from this warranty. If, after inspection, a part returned, under any warranty, is deemed to be ineligible for warranty repair or replacement, the part may be repaired or replaced for a discounted cost. Return shipping charges will apply. Any part for which a warranty replacement is sought must be returned to Trail-Gear Inc. before any replacement items can be shipped. All replacement parts shipped before the suspect part has been received and evaluated by Trail-Gear, MUST BE PAID IN FULL. In such a case, after the suspect part has been received and approved for a warranty replacement, the purchase price for the replacement will be refunded.

    To begin your warranty claim:
  • Please contact Trail-Gear Inc. at 559-252-4950 or email prior to returning any product under warranty to verify that warranty is still in effect.
  • Products must be shipped back to Trail-Gear Inc. at the expense of the customer.
    Ship all products to:
    5356 E. Pine Avenue
    Fresno, CA 93727.
  • Please place a clearly marked copy of the original invoice inside the package.
  • Please include a short note stating the problem you are experiencing.

If any of the above mentioned policy is not met, the package will be refused or warranty claim denied. By completing the steps above, this will ensure faster processing of your claim so that Trail-Gear can get your product back to you as quickly as possible. All warranties are generally processed within 2-3 business days of Trail-Gear receiving the parts from you. Additional delays may be incurred if product needs additional testing or repairing.

If you are an international customer, please email the warranty department at to receive further instruction. International customers may have the option to field destroy an approved warranty to avoid costly return shipping. In this case, any shipping charges for replacement parts will be at the expense of the customer.

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