outkastyota
+1y
can someone tell me or show me how much of a pinion angle i should have on my truck. its a 98 standard cab s10...when im riding bulldog or even up it rubs the edge of the cab an the floor of the cab.an also it does it the hardaest in 3rd an 4th when you first hit the gas an let off.thanx for any help
outkastyota
+1y
ok im a idiot when it comes to this kinda stuff what is 2-3 degrees look like?is there a way to check it?
bdydrp97s10
+1y
go to a hardware store and ask for an angle finder. when you get it stick it on the bottom of your drive shaft and thats your pinion angle
bdroppeddak
+1y
actually goto home depot or lowes and get an angle finder, unbolt the driveshaft, set it to the side, stick that angle finder on the pinion yoke flange and then you can use it to measure your pinion angle. now if ya have a 1 piece measure the angle that the tranny is pointing at, then i usually set my rear end about 2-3 degrees negative of that. now if you have a 2 piece shaft, it gets real tricky, i havent quite mastered those angles, because you have to worry about the carrier bearing height, and driveshaft working angles, etc.
sadisticiron
+1y
at completly laid out you want a negative 5 degrees so during the lift process if the link system is built correctly at full lift youll have a positive 5 degrees of pinion angle. it all depends on the link setup but you always want the rearend pinion angle to follow the driveshaft during its movements. anything too dramatic will cause vibration when accelerating and/or decelerating
periportfd
+1y
Originally posted by sadisticiron
at completly laid out you want a negative 5 degrees so during the lift process if the link system is built correctly at full lift youll have a positive 5 degrees of pinion angle. it all depends on the link setup but you always want the rearend pinion angle to follow the driveshaft during its movements. anything too dramatic will cause vibration when accelerating and/or decelerating
That's 10 degrees of pinion angle change? Doesn't sound like a proper setup to me.Vibrations come when the working angles of the u-joints don't cancel each other out. That's why you can't just say 2 degrees on the pinion because that doesn't take into consideration the tranny output angle or driveshaft angle. The joint creates an elliptical path that's why if one side isn't equal but opposite, vibration starts to kick in since it isn't creating a circular path when it is set at an angle (which it always is)
at completly laid out you want a negative 5 degrees so during the lift process if the link system is built correctly at full lift youll have a positive 5 degrees of pinion angle. it all depends on the link setup but you always want the rearend pinion angle to follow the driveshaft during its movements. anything too dramatic will cause vibration when accelerating and/or decelerating
That's 10 degrees of pinion angle change? Doesn't sound like a proper setup to me.Vibrations come when the working angles of the u-joints don't cancel each other out. That's why you can't just say 2 degrees on the pinion because that doesn't take into consideration the tranny output angle or driveshaft angle. The joint creates an elliptical path that's why if one side isn't equal but opposite, vibration starts to kick in since it isn't creating a circular path when it is set at an angle (which it always is)