toy trannys

[oldbeercans]

i have two different styles of trannys. the one that is in my truck currently is hooked to a front shift t-case. the other is hooked to a top shift. im wondering what tranny i should keep and what one i need to do dual cases in a few months. im not sure if i could use the front shift reduction box as my first t case and then hook one of my top shift cases as the second, or if i need to run both top shift cases. what would be the best set up and why. i want to get rid of the rest of my trannys and t- cases. i know that the top shift cases are both 21 spline but cant remember what spline the front shift is, is it honestly going to be a problem running 21 spline. i plan on steping up to a 38" or bigger tire in the future, and im not really a hammer down driver. what are the different trannys and how do i tell them apart? i appriciate the help and advice. im not new to wheeling but am kind of new to yotas and just would like to do it right the first time. im trying to keep the cost down as much as possible due to lack of funds and would like to use the **** i allready have if possible. oh ya and i already know that my spelling sucks so thanks for noticing. hopefully see you guys on the trails soon. me and a few wheelin buddys are heading to rim rock for labor day. ill be in a built green drab flatty, if you see us say hi. laters:beer: :beer:

 

[Snowrunner]

front shift is 21 spline only turbo 4cyl yota tcases were 23 spline top shift. Check marlin crawler under there tranny section for positive identification but my guess is there both w56. w56 ab hook up to top shift cases ie dont have the mount for the tcase shifter on them. w56 cd have the mount for forward shift cases. I would go with the tranny for the top shift. If your nots a heavy throtle wheeler 21 should be fine for you. Oh and you can mix forward and top shift cases. There the same except that the shift rail will need to be converted on the forward shift to a top shift. Marlin has the goodies for ya and its cake to do.

 

[oldbeercans]

cool thanks for the reply and help.

 

[London Gentleman]

front shift is 21 spline only turbo 4cyl yota tcases were 23 spline top shift. Check marlin crawler under there tranny section for positive identification but my guess is there both w56. w56 ab hook up to top shift cases ie dont have the mount for the tcase shifter on them. w56 cd have the mount for forward shift cases. I would go with the tranny for the top shift. If your nots a heavy throtle wheeler 21 should be fine for you. Oh and you can mix forward and top shift cases. There the same except that the shift rail will need to be converted on the forward shift to a top shift. Marlin has the goodies for ya and its cake to do.

Detailed. :awesomework:
Cory,

 

[megatoy66]

front shift is 21 spline only turbo 4cyl yota tcases were 23 spline top shift. Check marlin crawler under there tranny section for positive identification but my guess is there both w56. w56 ab hook up to top shift cases ie dont have the mount for the tcase shifter on them. w56 cd have the mount for forward shift cases. I would go with the tranny for the top shift. If your nots a heavy throtle wheeler 21 should be fine for you. Oh and you can mix forward and top shift cases. There the same except that the shift rail will need to be converted on the forward shift to a top shift. Marlin has the goodies for ya and its cake to do.

21 spline were both top and forward shift.............23 spline turbo 4 cyl. were 1986-1987 forward shift only.

 

[Snowrunner]

I stand corrected, just always thought 23 were top because of being used in dual case but I looked at the r151 and it is indeed a forward shift style transmission hence forward shift cases. Thanks megatoy