You want the pinion angle set equal to but opposite of the enginetrans. 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.
Triangulated 4 Link Rear Suspension System
Setting pinion angle 4 link. A properly designed 4 link will have minimal pinion angle change over the stroke of the suspension. Be sure to check out all of the other videos in the series. Part 3 pre load. Also look to make sure the transmission mount itself has not collapsed as this could cause a change in angle as well. Just think of it like one cancels out the other and youll remember it then. Place angle finder on bottom of driveshaft and write down the reading.
If this is your first visit be sure to check out the faq by clicking the link above. 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 never want the rearend setup with positive pinion angle. To start viewing messages select the forum that you want to visit from the selection below. This is when the yoke of the rearend is tilted upward more than the driveshaft. Part 1 rear end alignment.
Click the register link above to proceed. The typical leaf spring rear suspension will need 5 7 degrees of negative angle. Rotate the pinion so that the ujoint caps on the yoke are pointing up and down. 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. You may have to register before you can post. Part 5 ride height.
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. Basically you want 3 5 down on the engine and trans 3 5 up on the rear. Part 2 pinion angle. If the vehicle is equipped with leaf springs then you can use wedge shaped aluminum shims to move the pinion up or down. 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.
What is the most accurate method for setting pinion angle on a 4 link rear. Part 4 anti roll bar.
Gallery of Setting Pinion Angle 4 Link
