dual t-casr install

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cruiser88

cruiser88

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Marlin Crawler was the first to bring dual transfer cases to the USA and the first in the world to bring low range gear kits to the Toyota market. As the leader in Toyota transfer cases we build the best units period. We can give you the low range, slow crawling gears your looking for.
Installing a dual transfer case into a 4-cyl equipped truck requires moving your existing t/case back approximately 6.5 inches. The additional crawl box is installed between the transmission and t/case. All 4-cyl gear driven t/cases are 21-spline except for the 1986-87 turbo, which is 23-spline. 2.28:1 or 4.70:1 gears can be used in any combination in the two t/cases. The most common choice is one set of 2.28:1 gears and one set of 4.70:1 gears, known as a Dual Ultimate Crawler. When building a transfer case for 4-cyl applications, the stock 21-spline input gear can be used. When building turbo, V6 & V8 applications, we highly recommend using a 23-spline input in the rear t/case. Otherwise, failure of a factory 21-spline input gear is certain. Floorboard and drive shaft modifications are required. The factory crossmember remains in its original position.
  • 20 forward and 4 reverse gear combinations.
  • Fits 1979-1995 gear driven transfer case applications.
  • Includes (1) EcoSeal transmission output seal and (1) EcoSeal transfer case rear output seal.
  • 4 & 5-speed application only.
  • One t/case shifter included, reuse your original shifter in second position.
  • 4.00 or 4.97 gears available upon request.
 
What do I need to do with the rear driveshaft? Keep in mind I have a good size lift. I know from looking I need to get my driveshaft kit in the front
KLF said:
Besides new driveshafts, you'll need one of these:

BudBuilt - Dual Case Crossmembers

and you gotta hack a big hole in the floor of the cab. You'll also need an extension for the speedo cable.
Click to expand...
 
Did you ask Gary about the shafts from the truck it was pulled out of? :meh:
 
Go to the man himself:

speedoext200.jpg


Speedometer Extension Cable | Marlin Crawler, Inc.
 
2ndGenToyotaFan said:
FYI I did not need an extension in The Green Bastard, I just undid all the clips holding it and was able to get the extra 6-7 inches...
Click to expand...

I was wondering about that. Thanks, I'll take a look.

KLF......that's what I figured, thanks!!! :cheers:
 
2ndGenToyotaFan said:
FYI I did not need an extension in The Green Bastard, I just undid all the clips holding it and was able to get the extra 6-7 inches...
Click to expand...

Neither did I when I did my 1985 xcab.
 
chris if your transfer-case shifter is to the left of your gear shifter you have the original trans, if it is to the right of your main shifter than you have an efi trans. sorry guys i do not know all the trans #,s
 
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