Bagging my '93. How do you guys setup your pinion angle? We measured from the oilpan siderail with a degree finder and refrenced that with the notch degree at the same height. Oilpan rail should be inline with crank correct? As far as output shaft goes? And the 3rd member should be same degree as tranny output shaft in opposite direction to cancell out vibration at ride height correct?Any help is greatly appreciated.
dude everything u just wrote made me feel retarded u are obviously way smarter then me lol, sorry im no help if i could be i would give ya some advice
yes, output shaft of the trans (which should be in line with the crank) needs to be the same as the pinion shaft in the diff. Any height difference will cause an angled driveshaft. that's OK as long as the output and pinions line up. Caveat: suspension systems that allow the axle to wrap (IE leaf springs) usually set the pinion angle 1-2 degrees LOW (meaning pinion pointed down) because the pinion will try to walk up the ring gear under acceleration.
I totally missed this question, sorry. I used the pan flange to set up my angles, it was the only thing I could find that I could get the angle finder onto. I, like you, assume that the pan flange surface is parallel to the output shaft.