NP241 - 231 parts interchangeability question?

[Creek]

I have a NP241 in my Blazer that needs a new chain, bearings and seals. I have a NP231 in my garage that is ready to go but it has a mechanical speedometer drive. Can I swap the tail housing, speedometer gear and vss from the 241 onto the 231?

David

 

[ryan22re]

i doubt it very seriously.

maybe just maybe you could swap the gears and chain into the 231, but i dont think it works the other way.

 

[afroman006]

How about the range fork and main shaft? Can I put a 231 fork and shaft into a 241?

 

[bigred81]

Will not work the 241 and 231 are two different cases with the 231 having the weaker parts. The chain in the 231 is shorter than a 241 chain. If you get some time go to a junk yard and look for an 88-95 241 for the guts to fix yours I had to do this on my 241 in my sub. I found an 1994 year model case that had been split open in an accident but the internals were perfect. If you try it and see what happens. Good luck

bigred81