Cross member the same for auto and manual trans?

[Eric M.]

Here's what I'm thinking of getting. 1980 GMC C3500 with a 350 and 4 speed (granny low) trans. The trans. is in bad shape and since this will be a company truck (construction), I'd like to swap in a Turbo 400. Anyone know if the transmission crossmembers are the same?

I'm not up on manual transmissions, what is the model # of the present unit in this truck?


Thanks,

Eric M.

 

[big83chevy4x4]

i believe the crossmembers are the same, you may have to move it in a different location.

the tranny would be a sm465

 

[Eric M.]

i believe the crossmembers are the same, you may have to move it in a different location.

the tranny would be a sm465

Thanks.

Are the sm465 desirable? Are they worth anything in "not working condition"? What does the "sm" stand for?

Eric M.

 

[mechted]

As with all things, it depends on how broken it is... a busted 2wd is probably not worth much to most people... but it depends
most of the 2wds ive seen go for less than 75 in working condition... so... somewhere between $0 and there i would guess

 

[big83chevy4x4]

i feel that the sm465 is a good strong tranny. there are alot of them in both 2wd and 4wd as they came in chevy ford and dodge.

the "SM" i think stands for saginaw muncie, but i could be wrong.

ive seen them from $200 fully rebuilt to $50 in working condition.

 

[Eric M.]

Thanks guys.

Eric M.