Please help with these angles

[K5Steve]

I just measured my t case/driveline and pinion angles and came up with 18* for the driveline,9*up at the pinion,and 5* down at the t case.I can't figure out what they mean.It is an 88 K5 with a 700r4 and np208.It looks like a 2 1/2 inch lift with blocks in the rear and they don't look to have a taper.Do the ang

 

[readymix]

You need to rotate the pinion down 4*

 

[K5Steve]

If I use shims woudn't that rotate it up or could I just turn them around?

 

[readymix]

you can turn them around

 

[K5Steve]

I thought the pinion was supposed to point toward the t case.

 

[MarcS]

The center lines should be parallel with regular u-joints and should point at the t-case when using a CV.
See the Tom Woods website, great info. Tom Woods Go to-Tech info/Driveline Geometry 101

 

[Leper]

After doing my shackle flip I had to rotate mine down 6*. I will weld new perches on when the 14 bolt goes in at about 5* and get rid of the shims.

 

[K5Steve]

Yeah by the pics on that website I can tell just by looking at it that the angle is off.The angle it's at now is like it would be with a cv shaft.

 

[K5Steve]

Would it make more sense to lower the t case?I have the 4*shims but figured I would see what may work best.