[Captkaos]

Yes, and no. Typically you don't need to adjust the pinion angle on a flip. Most of the ones I have seen have the "engineered" the proper angle in there. I have had some people on the internet saying they needed shims, but I haven't. My pinion is usually around 3-4 degrees. You really don't want to change the angle on the transmission though, it will effect the engine/driveline angle. The pinion centerline and the drivetrain centerline should be parallel to each other for proper driveshaft phasing.