tranny part interchangibility

[wood ring]

i have a 1988 ranger 4x4 when i bought it it had a 4 speed tranny in it and im now swapping it out for a 5 speed. got tired of 8 miles to the gallon. well when i got to taking out the 4 speed i found that it had an external slave cylender and would like to put that onto the 5 speed. what i need to know ultimately is how much work is it to change the bell housings and will they interchange. i have no clue what the 4 speed is model wise. but the 5 speed is a direct fit replacement from a 4x4 bronco ll. thanks to all for any input

 

[jhammel85]

What motor did the 5 speed come off of? If it was a 2.9 like yours then I would venture to guess that it would be OK. I'm pretty sure they are interchangeable...

found this in the tech library
http://www.therangerstation.com/tech_library/InterchangingTansmissions.html

 

[adsm08]

I'd guess you have a TK4. If you find a TK5 it is pretty much a direct swap. If you come up with an FM then there may be other modifications needed to make it work, if you find an M5OD, no go Joe.

There may be trans and drive shaft length issues to consider as well, so measure your transmissions before you start.

 

[wood ring]

right now the truck is sitting still clutch went out and i have another ride to drive till i fix it the plan now is to pull everything apart and see what i can do