Manual to Auto transmission crossmember ?

[rchavez101]

I am in the process of gathering info for my tranny swap from a manual to a 700r4 and I am wondering if the cross member is different or does it need to be rolocated with different mount on the cross member. Please let me know thanks.

[rchavez101]

I know someone knows the answer.

[bubba353z]

I'm doing searches here for the same project.....

I found one thread (so far) that says you have to remove the manual crossmember, which makes sense. Looking at my 68' (w/ 3 on the tree) it has two side mounts to the manual's case, whereas the 700 has a single mount on the tailshaft.

I'm looking at a CPP tubular mount right now.... Others will likely suggest different options

[rchavez101]

Originally Posted by bubba353z

I'm doing searches here for the same project.....

I found one thread (so far) that says you have to remove the manual crossmember, which makes sense. Looking at my 68' (w/ 3 on the tree) it has two side mounts to the manual's case, whereas the 700 has a single mount on the tailshaft.

I'm looking at a CPP tubular mount right now.... Others will likely suggest different options

I heard that you have to move the crossmember back but put a different mount for the 700R4. When I look under the truck there are different holes on the frame to move the crossmember back or forward. I have not been able to verify if that is true or not. I know some on the forum has gone from manual to Automatic but unsure how they did it.

[bubba353z]

Yeah, the 700 is longer than a 350/400 - but it's only two holes per side to drill (at most).

The 700/350/400 use the same rear mount. Check out Energy Suspension:

http://www.jegs.com/i/Energy+Suspens...1108G/10002/-1