driveshaft angle

[Jon1156]

I'm trying to find out the proper driveshaft angle for my 1980 ElCamino..
have put in a T5 and had to shorten the driveshaft 3" and now at 70 mph I have a viberation i think its the driveshaft angle doing it.. had the driveshaft rebalanced so its not that, any help???

 

[megaladon6]

best bet is to check the manual for your car, but i believe it's about 3 degrees. 4 links need much less angle than other suspension setups.

 

[Mike P]

I just finished and starting driving my 83 El Camino today. I did and engine/transmission/rear end swap. When I set up my 9” rear I measured the original drive line angle which turned out to be 0 degrees which is what I welding my axel brackets to duplicate (I picked up a set of adjustable upper control arms so I could adjust it if needed).

At 0 degrees I have no vibration to 90 MPH (as fast as I’ve pushed it so far).

 

[fbrow16]

My 80 malibu having same issue 75mph bad vibration. T5 trans 373 gears 26 inch tires. Changed u joints the pinion is o the trans is 0 the shaft is 4.The drive shaft was shortened and balanced but had same vibe before driveshaft mod.