Camshaft Confusion, Correct Part# to run original D-Jet Options

[914_7T3]

The cam from my '73 is worn and I have secured what I believe to be a NOS replacement part #021109111B that has been separated from its box (will arrive Monday). This is the identical part # to the one that was in my GA case and I purchased it listed as the correct part for my car along with the '76 912e.

However this is merely the part number for the Camshaft gear and there are no additional part #s on the Cam itself.

Questions as follows:

#1: The cam gear is riveted to the shaft as a one piece assembly, so is there anyway that this can be the incorrect replacement shaft?

#2 Cam Gear Part number 021109111C has a corresponding part #021109101K stamped on the cam itself. Some say that the difference is that the C designation is a stronger alloy versus magnesium for the part designation ending in B. Is that correct and would this be the correct cam as well for a GA case? If so, would you go alloy or magnesium? Both gears are marked -3 at the teeth.

#3 Worst case scenario, can the original be reground or would it be foolish to reuse.

#4 Are there any replacement Cams that are as good as or better than the NOS 44 year old OEM option?


Here are some pics as oily engine parts are cool (IMG:style_emoticons/default/sunglasses.gif)