aerosal lithium does zero for me
The problem is less noticable on a 1500 leaf pack because there are less leaves at that point where the caltrac side plates pivot on.

 

anyone else have any insight on this or do I need to go to a driveline shop?

 

for the record and before I start messing with ****, here are all my ride height measurements(Caltracs still loaded)

driver front(38 5/16)


driver rear(41 8/16)


pass front(38 11/16)


pass rear(41 13/16)

 

drivers rear/unloaded caltracs (41 4/16)


pass rear/unloaded caltracs (41 10/16)





front measurements = no change

 

4/16....8/16....10/16?

 

now here's an interesting find, with the caltrac's unloaded ALL angles changed as follows:
...............................caltracs........... .............unloaded
diff angle.....................93*..................... ..........92*
rear d/s angle...............98*........................... ....96*
front d/s angle..............95*............................ ...93*
trans angle...................95*....................... ........93.5*

pinion angle w/caltracs loaded -5* (diff 3* up)
pinion angle w/caltracs unloaded -4* (diff 2* up)

is my math correct here folks?

 

Sounds right. I figured you would have had the answers by now......
I think I will keep my o.e. hangers and just shim my axle to a pinion angle of -3 or -4. Lets just hope the 2* shims that I have will allow these angles.
Caltracs will be installed tomarrow.

Jim

 

That looks correct to me.

What reference surface are you using to measure your pinion yoke face? In theory you are supposed to pull the axle and measure on the surfaces that the u-joint mounts to. If you are happy that your diff angles are accurate then those calculations look good to me.

 

I used the the flat of the U-joint outer bearing surface



If I'm off, it's not by much

 

got the bushings out of one 1500 leaf pack, starting on the next