Hopefully someone can help me out here. I'll try to be as clear as I can and as simple as possible. A little about the project. 1927 RPU jalopy. The frame in front is Z-'d with 25" tall tires. The rear frame has a high kick up with 30" tall pie crust slicks on it. Rear suspension is fixed with a set of split wishbones. The truck sits VERY low. 3 1/2 inches at it's lowest point. I have always set up the rearend pinion angle on a leaf spring cars at 6 or 7 degrees. On a fixed rear such as a ladder bar set up I will give it 3 or 4 degrees of pinion angle. The problem I'm looking at is the way the 27 is built. The rearend is sitting way higher than the trans tailshaft. It's the opposite of what I'm use to dealing with. With the pinion angles I normally use the pitch on the short driveshaft looks like it's going to snap a U joint quick. Should I drop the rearend pinion down to make driveshaft more in line with the trans? I hope some of this make sence to someone. Maybe I'm just overthinking here but it just doesn't look right to my eyes.