Inchworm Gear Tacoma Dual Case Adapter (IWG-TDCA)

Weight 45.0000
Manufacturer Inchworm Gear
Availability Generally on Shelf

Availability: In stock

Regular Price: $799.00

Sale Price $615.00


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   Download Installation Instructions

This Inchworm Gear adapter will fit Tacomas and 4Runners from 1995 to present as well as FJCruisers. Your stock chain driven transfer case will bolt up to the back of this adapter and allow a gear driven RF1A transfer case (not included) to be installed in front of your stock t-case.

You will need an adapter to mate the RF1A to the Tacoma transmission.  These can be found here.  The inchworm front case  adapters offer clocking in 5 degree increments for nearly infinite rotation options.

Stock trucks will get the biggest advantage for the least floor modification at 30 degrees. This puts the bottom of the transfer case just below the bottom of the frame rail. Trucks with body lifts will clear the floor that much more easily. This kit will lengthen your drivetrain approximately 8.5 inches and will require driveshaft, shifter, floorboard, and crossmember modifications.

4Runners and FJ Cruisers may require fuel tank modifications. 4cyl Automatic models may require a shift rail conversion kit.

You need to know if you have a 26 or 23 Spline Tacoma t-case.  

  • 4cyl Manual - 26 Spline
  • 4cyl and 6cyl Auto - 23 Spline
  • 6 Speed Manual - Not Available

We do not recommend using a 4.7:1 gear set in the first case because of the strain it puts on the input of the chain driven case, however they are available.

If you want triple cases simply purchase our Double Case Setup as well.

Note: If you have a 4.0 Manual 6 Speed Transmission you will need to use either a Tacoma transfer case that came behind a 5-speed manual or automatic, or an FJ-Cruiser case that came behind an automatic transmission.


-Inchworm Tacoma Double Transfer Case Adapter Kit ONLY

We also offer a complete Tacoma dual case assembly complete with a fully rebuilt gear driven case and  transmission adapter which can be found here.



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