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Trail Gear Transfer Case Gears 4.7 Ratio 23 Spline (Each) - 105001-1-KIT

Brand:  Trail Gear Product ID:  4457
SKU:  105001-1-KIT
Available Options
RRP:  $1,223.00
Special Price:  $978.00  (Each)
SAVE:  $245.00

Supply Only Price.

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. 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.

Trail-Creeper gears fit Toyota Hilux, Surf and 4Runners 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. Each gear set carries a full lifetime guarantee. If your gears ever fail to function properly, simply return them to us for replacement.

Whats the Go with 21 or 23 Spline Configurations?

This refers to the spline count on the input shaft. Stock Hilux gear driven transfer cases are 21 spline, however if you are fitting this transfer case behind an R151 you will need a 23 spline input shaft. The other time you will want a 23 spline input shaft is when installing dual transfer case adaptors. The weakest link in a dual transfer configuration is the input shaft between the two cases. The 23 spline input shaft is stronger.

In Summary :

  • If you are running a single gear driven transfer case behind a G or W series transmission you will want the 21 spline gearset.
  • If you are running a single gear driven transfer case behing an R series transmission with the Chain to Gear drive adaptor then you will want a 23 spline gearset.
  • If you are running dual cases with reduction gears in the rear case it is recommended to go for the 23 spline gearset as the input shaft into the second case stronger.
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