How much do I need to cut my driveshaft for 8.75 upgrade?

[Chryslerkid]

Hi everyone
I have a 1968 barracuda that has its original 318/904 setup...I upgraded to an 8.75 rear end from the stock 8.25. How much if any do I need to cut off the drive shaft to make it work?

Thanks y'all

:burnout:

 

[mderoy340]

shove the tranny yoke all the way in and pull it back 3/4 to 1", measure center to center of u joints to do it correctly.

 

[crackedback]

It's about .60 inches difference between the two.

Best to measure and verify.

 

[Chryslerkid]

Cool thanks guys. I'll make sure to measure it up and then bring it down to the local shop to cut it.

 

[Dave1967]

Just an idea. If you're u are going to cut your drive shaft, you may want to space your front spring hangers out to center your tires in the wheel well. Usually a 1/2" is all that is needed. Then measure your drive shaft to what you want.

 

[sireland67]

All good advice, but check which yoke is on the new rear end and transmission.
They could take different U-joints, on either end.

 

[ir3333]

total length should be 48.60 "