Rotate the pinion so that the ujoint caps on the yoke are pointing up and down. Also look to make sure the transmission mount itself has not collapsed as this could cause a change in angle as well.
Driveline Setup Aka Pinion Angle
Setting pinion angle 4 link. Click the register link above to proceed. Part 5 ride height. Part 4 anti roll bar. To start viewing messages select the forum that you want to visit from the selection below. Be sure to check out all of the other videos in the series. This is when the yoke of the rearend is tilted upward more than the driveshaft.
The typical leaf spring rear suspension will need 5 7 degrees of negative angle. Place angle finder on bottom of driveshaft and write down the reading. If the vehicle is equipped with leaf springs then you can use wedge shaped aluminum shims to move the pinion up or down. If you are running a 4 link suspension system you can adjust the upper rear end links in or out to bring the variation back into where it needs to be. Part 1 rear end alignment. You never want the rearend setup with positive pinion angle.
A properly designed 4 link will have minimal pinion angle change over the stroke of the suspension. Set the angle finder on the face of the yoke where the u bolts go through. A ladder bar or 4 link setup is much more rigid and therefore usually only needs 1 3 degrees. Part 2 pinion angle. Basically you want 3 5 down on the engine and trans 3 5 up on the rear. If this is your first visit be sure to check out the faq by clicking the link above.
Part 3 pre load. On a triangulated four link factory gm or ford the upper bars are also used to set the pinion angle by adjusting both uppers the same direction and same amount. Part 2 in our series of tutorial videos that explain drag racing 4 link rear suspension set up shows you how to set pinion angle. Just think of it like one cancels out the other and youll remember it then. According to bickel a ladder bar suspension normally requires degree of pinion angle a four link requires 1 2 degrees and a leaf spring suspension requires up to 6 to 7 degrees. You may have to register before you can post.
What is the most accurate method for setting pinion angle on a 4 link rear. You want the pinion angle set equal to but opposite of the enginetrans.
Gallery of Setting Pinion Angle 4 Link
.png/:/rs=w:400,cg:true,m)
