GM A Body Drive Line Angles

FSA1673 · 08-16-2013, 03:23 PM

What are optimum angles for this type of suspsension system. It seems I cannot get the angle of the pinion and the crank to be parallel. The engine/trans is pointing down by 5 degrees, when viewing car from the side it slopes toward the rear. The pinion is currently sloping down toward the ground as well. I have adjustable top trailing arms with heim joints each end and can adjust the angle of the pinion, which also affects driveshaft angle. I can also shim trans mount some as well until header clearance becomes an issue. Should I be more concerned with trying to minimize operating angles of the u joints at each end rather than relationship of the pinion angle to the crank angle.

Any input is much appreciated.

Thanks, Scott

08-16-2013, 03:23 PM	#1
FSA1673 Junior Member Join Date: Jan 2010 Posts: 81 Likes: 0 Liked 12 Times in 6 Posts	GM A Body Drive Line Angles What are optimum angles for this type of suspsension system. It seems I cannot get the angle of the pinion and the crank to be parallel. The engine/trans is pointing down by 5 degrees, when viewing car from the side it slopes toward the rear. The pinion is currently sloping down toward the ground as well. I have adjustable top trailing arms with heim joints each end and can adjust the angle of the pinion, which also affects driveshaft angle. I can also shim trans mount some as well until header clearance becomes an issue. Should I be more concerned with trying to minimize operating angles of the u joints at each end rather than relationship of the pinion angle to the crank angle. Any input is much appreciated. Thanks, Scott