diveshaft pinion angle

[werner]

Does anyone have a procedure for checking driveshaft angle at pinion(with pic's) with setting this up. HAve some vibration through shifter at high rpm. Vibration appeared after  pulling  out 383 with tko 5spd and installing 528 Hemi crate. Flywheel was changed just recently with a 11" and new clutch so its not that. Driveshaft is the same(didnt vibrate with 383) Installed Schamacher mounts, my guess looks like tarnny sitting a little higher in front. Hope to correct with some hims under pring perches.
Thanks Werner

[RallyeMike]

You need to buy a cheap angle finder to do the job. Measure the angle on the engine oil pan rail, the driveshaft, and remove the pinion snubber and measure atop the rear axle. Draw it up and measure twice being sure to note if it is angled up or down. The car does not need to be level as you are just checking relative angles. To get it set right, you may need spacers in the rear trans mount in addition to axle shims under the spring perches.

Search on "angle finder" at Summit Racing.

The best angles depend on usage of the car and spring rates. Shoot for 2-4 degrees on both ends and make sure that that both ends of the driveshaft are within 1 degree of each other and it's hard to go wrong.

Here's some pro opinion and pics to help:

http://www.carcraft.com/howto/91758/index.html

Have fun.