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4.7 Creeper Gears, 21 And 23 Spline

As low as $754.80
SKU
4.7 Creeper Gears 21 And 23 Spline

Trail-Creeper™ 4.70 T-Case Reduction Gear Kit

For rock crawling, lower transfer case gears give you the control you need to keep your truck on track. Trail-Gear offers an affordable 4.70:1 gear kit for your gear driven Toyota transfer case. Trail-Creeper T-Case gears are available in 21 and 23 spline configurations. Kits include replacement gears, gaskets and seals. Disassembly and modification of transfer case is required for installation. Input gears are precision ground & micro-polished to guarantee the removal of all surface imperfections in the forging.

Choosing the right material for our gears was our top priority. Gears that perform well under load and street driving require a high quality steel alloy material. We chose Japanese alloy SCM415 for its great strength and wear resistance. SCM415 outperforms the 8620 material in yield and ultimate tensile strength resulting in a gear that is less prone to chipping or cracking. SCM415 also retains its strength under high-temperature use. High carbon materials such as SCM420 or 8620 are not the best choice in our experience and opinion as they do not carburize as well and can become brittle.

Trail-Creeper gears fit Toyota 4WD Pickup's and 4Runners from 1979-1995 with gear drive style transfer cases. Gear sets reduce the stock low range from 2.28 to 4.70, nearly twice the the reduction of the stock gears. High range is not affected and remains 1 to 1.

V6 applications require the transfer case be replaced with a 4Cyl gear drive unit and V6 Adapter plate. Speedo cable, floorboard, drive shaft, and crossmember changes may also be required.

Why buy Trail-Gear 4.70 Gears?

  • High Quality Materials
  • Precision fitting spline fit for long life
  • OEM Gasket Set

Available options:

  • Trail-Creeper T-Case Gears, 21-Spline, 105000-1-KIT
  • Trail-Creeper T-Case Gears, 23-Spline, 105001-1-KIT

The 23-spline 4.7 input gear will not fit into the stock coupler on an R151 Turbo transmission.

⚠ WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov

  • Reduces the stock low range from 2.28 to 4.70, nearly twice the the reduction of the stock gears
  • High range is not affected and remains 1 to 1
  • High Quality Materials
  • Precision fitting spline fit for long life
  • OEM Gasket Set

  • 1979-1995 Toyota Pickup (All Engines)
  • 1985-1995 Toyota 4Runner (All Engines)

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 sales@trail-gear.com 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:
    ATTN: WARRANTY
    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 sales@trail-gear.com 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.