pinion angle
the relationship between the driveshaft and rear and the driveshaft and the tranny are not as important as the angle of the rear to the ground. with a leafspring car more pinion angle is disired.BUT with the caltracs it will iliminate the wrap up of the leaf spring helping you pick up the front of the car quicker.that being said I would still set the pinion 2 degrees down in relation to the ground, on a level surface,say the pits at the track. the rear end is probably offset to the right 3/4 or 1 inch. so that puts a couple of degrees perpendicular to the rear, also not a concern, and the tranny is possibly mounted in the original location making the front yoke angle what it is. over all it sounds like it's abit to much angle if it's 4.5 degree down. thx Pro Mod Chasis tuner