[VetteVet]

For what it's worth I made a tool for this. I used an NPT pipe bushing that threads into the clutch I think it was a 1/2 in. pipe and I simply welded a 3/8ths by 16 nut onto the bushing. Then any 3/8ths x 16 bolt with enough threads to hit the compresser shaft will work. I removed the clutch nut with my impact driver and threaded it back onto the shaft far enough to protect the compressor shaft threads then just ran the 3/8ths bolt in till it hit the nut and broke the clutch seal. I'm typing this from memory so the sizes may not be quite right but I just wanted to give you an idea if you feel like trying it. I know that buying the tool from the store may be the proper way to do it but I like making my own stuff. Total cost was zero. If I had to buy a new clutch then I'd have bought the new compressor with the clutch already on it. Good luck.