[68SSCamaro]

I have three GM pulleys that I have not been able to find the application for. Maybe someone can help me out.

1. 346290 AB, this is a crank extension pulley for power steering. It is a little further out from the engine than the 232 SB version.
2. 3923752 AE, this is a smog pulley, 3 mounting holes, deep groove with an offset away from the engine.
3. 3906329 BW, this is a cast iron alternator pulley.

Any help appreciated.

Thanks, Martin