pinion angles, drop blocks, and ford 9in

[73kay]

hey guys,

saw a post similar to mine, but didn't want to hijack it. I have a 53 3100 running 235/75/r15s with a ford 9 inch rear end 3.50 posi. I made some 3 inch drop blocks and getting ready to weld the perches on the axle once my angle looks good. Here is my question:

Does it matter that the ford 9 inch axle is offset a bit, aka the driveshaft is not centered as it bolts to the axle? I currently have my truck on a driveway with about 3-5 angle incline and when I use my angle finder on the 235 valve cover, I get about 1 degree positive. (My truck is backed into the driveway). Right now I have my rear axle at 0 degrees. I believe the sweet spot was 2-3 degrees with each other right? I just want to double check before I weld the perches on the axle. I also noticed where the bolt that holds the springs together is not perfectly centered but about 2-3 inches forward of being centered. My tires hit if I try and center off that bolt, so I have the axle mocked up about 1in or so behind the bolt head.

Sorry no pics yet, but I will post some tomorrow. Thanks for your feedback!