Pinion Angle Help

bOb shingler said
measure the stock rear first and see what that is or is that what you did to get the 5 degree reading. if you're using leaf springs I believe 3 degree won't be correct. what type rear suspension do you have?

To: Farina, James
Subject: Re: Dana 60 Order

Stock A-body pinion to perch angle is 5 degrees up. If you raise the front spring eye hole 1.5", while leaving the rear spring eye at the stock height, I estimate a 3 degree pinion to perch angle will compensate.

Cass

69MOPE said
I would have him send the perches not welded on. The angles you are changing may make it that you might need a shim larger than is safe or available. Bolt the rear in, mock up everything, that means engine and trans in and full curb weight then tack the perches, pull the rear, have them welded on.

I am geting it powdercoated so they need to be welded on before coating.

Considering they make 4" spacers for springs i'm sure shims can correct it. The billet shims Dr. Diff caries are 3 degrees and are safe.

I can weld, that sin't the problem.