threads
Page 2 of 3
Chevy/GMC Trucks \  2 piece driveshaft

2 piece driveshaft

Chevy/GMC Trucks Make Specific
views 733
replies 27
following 13
 
Drag-N-Low   +1y
Originally posted by mastercraftmini



slimy and humid

lmao
ExplicitDesignz   +1y
I had like a half inch shim under mine, worked out fine.
periportfd   +1y
Find the tranny output angle and driveshaft angle. That gives you the working angle. Adjust the carrier bearing to make an operating angle less than 3. You now have a set output angle for the front shaft, adjust the pinion angle on your rearend the same way as normal and then measure the rear shaft angle at ride height. Make sure the operating angle is less than 3 again. If not you can either adjust your ride height or split the difference with the front shaft, which means re positioning the carrier bearing. You can also set the front shaft at 0 working angle referenced from the floor and put it in a working angle from the side, but try the carrier first, working with compound working angles isnt "as" fun, but always include a working angle of some kind, U joints arent designed for 0 working angle.
bdroppeddak   +1y
i want to drive the bitch on the ground, if i adjusted the ride height to like 5" off the ground it would be smooth as glass, but thats not what i want, when you say rear shaft angle, do you mean the angle which the driveshaft actually is from being parallel to the ground??
periportfd   +1y
Any angle measurement you take doesn't have to be referenced from a totally level ground. What I mean is, as long as you take all of your measurements without moving the vehicle they will all be equally "wrong" (compared to a perfectly level surface). The relation of the floor doesn't mean anything, it's the relation of the pinion angles to the shaft angles. Many people confuse the "3 degree rule". They think that Spicer specs out 3 degrees positive or negative pinion angle measured from a perfectly level surface, this is not the case. Spicer is specifying a 3 degree working angle which is 3 degrees of difference between the two and no more. Imagine a perfectly setup driveline on a flat surface, if you stood the entire car up vertically, does that mean the driveline isn't setup right anymore?
fuller   +1y
on my friends 96 gmc ext cab we put the shims on and it fixed all the vibration problems
bdroppeddak   +1y
holy crap andy you are confusin the heck out of me, so im gonna shim the carrier bearing and hope the vibration goes away, ifnot i'll just get a longass 1 piece made and notch the hell out of everything.
OldSkoolCadillac   +1y
long one, good idea
periportfd   +1y
Sorry Chris, I tried my best.
bdroppeddak   +1y
its aight, im normally good a comprehendin something, but that went str8 over my head. a picture would work noice if you have one