pinion angle? level truck?
 

Hello once again ...i know my truck needs to be at ride hight to set pinion angle ..but does my truck have to sit level. im working on a unlevel floor. and once again thanx to everyone for building my truck...

Re: pinion angle? level truck?
 

Do you have the trans in? If so just match the trans angle with the pinion angle.

Re: pinion angle? level truck?
 

yes tranny is in ...so i dont need dto have the frame level? just at ride hight and set/weld?

Re: pinion angle? level truck?
 

pinion angle is about the angles between the trans, drive shaft and rear. You could do it on a hillside it doesn't change the drive shaft to pinion angles.

What does matter is it the ride height being where you want it and is it at the curb weight you want. Don't set it and then decide to put the 800 lbs bed on it.

Re: pinion angle? level truck?
 

Spot on. Transmission output and pinion should be offset, but parallel. This gives you equal and opposite joint angles.

Jeff

Re: pinion angle? level truck?
 

Trans output should be around 3 degrees down and pinion should be the same angle only pointed up, with the frame at ride height. Usually the frame is level at ride height unless you live in Kentucky and drive a ford
maybe.

Re: pinion angle? level truck?
 

at ride hight my tranny is at +5 so do i set my pinion at -5 ?,oh and my truck has 2 shafts..sorry

Re: pinion angle? level truck?
 

Can you raise the tranny a bit to get it closer to -3?

Re: pinion angle? level truck?
 

the motor and trans are bolted down.. i added air bags and so i have a diff ride hight.. can i add i shim to the rear trany mount to raise it?

Re: pinion angle? level truck?
 

Yep. Probably only need 1/2 an inch

Re: pinion angle? level truck?
 

i was driving this truck on bags. then did the rear swap to a five bolt. the trany was in the spot it is now and it was great down the road..

Re: pinion angle? level truck?
 

just want to get it back on the road because i start a new job in 4 days..need to weld her up tomorrow..i hope

Re: pinion angle? level truck?
 

just found this ...look right?

Re: pinion angle? level truck?
 

You have a one or two piece drive shaft?

Re: pinion angle? level truck?
 

2 piece. oh and thanx for the help tinydb84

Re: pinion angle? level truck?
 

All the info before is based on a one piece. Mine was 4 down and 4 up in the rear. The driveline was 6.5 for the first and second piece. Both pointing down to the rear.

Re: pinion angle? level truck?
 

ive heard that the rear should be down because when driving it will rise.. as of now my front is +5 and my rear is -5.. the shafts look like a V from the side.. just like the pic

Re: pinion angle? level truck?
 

If you have trailing arms that does not apply.

Re: pinion angle? level truck?
 

yes i have the stock trailing arms...so what do i want to do?

Re: pinion angle? level truck?
 

Read this starting page 10

http://www2.dana.com/pdf/J3311-1-DSSP.pdf