Pinion angle with Monoleafs and CalTracs

Yes, 2 degrees up....but only under hard acceleration!! When the car is static the pinion angle should be pointed "down" relative to eng/trans angle. This drive shaft angle discussion can get very confusing depending on what terminology used, but in the end you want your eng/trans angle and pinion angle to be the same under hard acceleration as shown about halfway down in this article. The pinion will rise "up", the amount it rises will depend on your rear end suspension, 4 link, traction bars, leaf springs, mono leaf, etc.
Look about half way down in this article where it shows a pic of two drive lines with the eng/trans drive line 3 degrees down. The example shows how the pinion rises under acceleration and will change the pinion angle :


Pinion & U-Joint Angles

There are numerous websites with many, many examples of what the OP needs to know.


treblig