When you open a shop manual for setting pinion angles or look it up online, generally, they give a specification for what it should be for your car. But, if your car has been modified, which it most likely is because you’re reading this, the pinion angle listed probably wont work.
My car was designed for a T5 transmission which was substantially smaller than the T56 I now run. I might have been able to get the correct driveline angles if I ran my car at the factory ride height, but since my car is lowered, the large size of the T56 limited how high I could raise the transmission to correct the angle at the front U-joint. The solution was to make an extension over the trans tunnel to allow it to be raised.
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