Pinion angle question

looks to me like the rear end is pointing WAY too high so my rear diff definatly points up and the tranny points down... the measurements show 2 deg. off so imma go ahead and adjust man thanks again for your help

real quick. make sure you are taking your measurements off of the correct spots.

the driveshaft should be out. set the angle finder on the very end of the tailshaft of the tranny. it'll most likely have to be offset a lil cuz the output shaft will stick out like .5". and on the rear end, youll place the finder on the flat flange that the drave shaft bolts to. or if its like and s-10, you'll have to bridge a retainer, making sure its pretty close to straight up and down.

sounds like a lot of work, but honestly will take 15 minutes after the truck is in the air.

if youve done that right, then the measurements you posted ealier should be tranny down 2 deg and rear end up 4. if thats the case, adjust the rear down 2 deg so that it points up 2 deg. but you do want the front of the rear end pointing up.

yea i had it on a hill in the driveway and just layed under and put the finder on a flat spot of each.. its hard for me to make time to do it... but yea thats more clear as of taking the measurements...

So if you have a 2 part drive shaft, what do you do? Any help would be appricated.

how do you measure and adjust pinion when you have a two piece driveshaft

ive asked andy this quest before, and this is the best i came up with. if he sees this and im worng by all means listen to him.

take your angle finder and put in on the underside of the front shaft. this will be the working angle of the front shaft. set your rear end equal and opposite of that angle. ie, front shaft is pointing down 2 deg, rear end should point up 2 deg.

other things you want to look for at ride height:ideally, the carrier bearing should be perpendicular to the front shaft. you want all working angles of ujoints to be between .5 and 3 deg.

reference this thread for anything else. ill try to answer questions as best as i can. click here