Pinion angle with 2-piece/carrier bearing?

[fabjunkie]

Just got the shackle flip on and trying to figure out what I need for shims. The pinion is pointed 5* up past straight with the rear shaft. I thought it needed to be just under straight with the rear shaft but what little I'm finding on google shows the pinion needs to be parallel with the carrier bearing?

 

[fabjunkie]

So with what I assume to be a 4* shim I had laying around (it's not quite twice as thick as a 2.5* I have), the pinion is about 1* from being straight with the shaft and is 3-4* from being parallel with the carrier bearing. If I'm seeing this right, I should order a 6-8* shim?

 

[fabjunkie]

Disregard the above. Remeasured everything and if I use a 6* shim it will put the pinion where it needs to be.

New question, should I go with an 8* shim to compensate for pinion angle change when under torque?

 

[n4xplay]

it was always my under standing to match your pinion angle with that of the output Flang of the transfer case unless your runing a CV shaft in the rear or the drive shaft is extremly sort. here is some info
http://www.4x4wire.com/tech/pinionangle/

 

[fabjunkie]

Yeah this is for a 2 piece shaft with a carrier bearing though. Going to run an 8* shim to point it ~2* below perfect to account for axle wrap.