Originally Posted by
pbrown
One comment in general about tranny, driveshaft, and rear ends. It is important for the tranny tailshaft angle to mach the angle of the pinion on the rear end. For example, if your tranny is angled down 10 degrees, the rear end should angle up 10 degrees. Imagine your car from the side. If there was a line through the tranny and another through the rear end, they would be parallel. The driveshaft angle isn't a big deal and long as you're two imaginary lines are parallel.
If you raise the tranny mount without touching the engine mounts then the tailshaft angle will change. You would also need to change the angle of the rear end to compensate.
There are exceptions. Sometimes a drag racer with leaf springs will point the pinion angle down a degree or two. The idea is that at full throttle the axle will wrap and everything will be is correct alignment.
I hope this all makes sense.
I did not think the jag rear center section was adjustable at all! How is this done?
Also, if they are parallel lines as you explained, the driveshaft would be absolutely straight between the 2 points, I thought this was a no no!
Dave
93 Unique Motorcars 427 SC, 428PI with CJ heads, toploader 4 spd,jag rear with 354 gears, Red with white stripes.