drivetrain question

[86cutty]

I have an 86 cutlass supreme. It has a 307 with a metric 200 transmission. Im putting in a chevy 355 and a 700r4, my questoin is will the crossmember have to be moved and will the driveshaft have to be cut.

 

[ss4ever]

First off congrats on the upgrade

Second Yes and Yes.

Your stock driveshaft will have to be cut down 3" and the crossmember will have to be moved one inch(I can't remember if it is forward or backwards(I think forward) Jegs sells a nice dual exhaust crossmember to bolt a 700-R4 into a G-body. I have one and it is a nice piece.

Randy

 

[86cutty]

i have an extra crossmember that was custom mad to run dual exhaust but i was hoping i didnt have to cut the driveshaft i think i go to the junk yard and get one down there and cut it.

 

[86cutty]

Would the driveshaft out of a gbody with the 2004r be the size i need or would that have to get cut as well?

 

[ss4ever]

The 200-4r driveshaft will be the same length as the one you already have in your car.

 

[86cutty]

isnt the overdrive transmission longer then a non overdrive?

 

[maliburacinfreak]

the 200r4 is the same length as the TH350 and metric 200, it just put the mount farther back so it uses a different crossmember.