I used an axle off of a NA'd motor... my car is weird. It is badgeless... no SE or SSE or SSEi on it... There is a SC under the hood, The "hood carpet" says SSE, and the floormats say SSEi. Boost gauge is present. I looked at a BUNCH of axles and mine needed to be about 1 1/2 - 2" shorter.... the N/A Bonneville took that axle... the Park ave, riviera, LSS, that were supercharged took either the SC bonnie or the NA bonnie, regardless of the supercharger being on all of them.... What the H*$$ was GM thinking? This car is bizarre. It is a shame that I am too attached to it... stupid cars.
Thanks for the quick input, I know I can always get the response quickly here!!