The definitive identification guide for Gen2 (92/93) and Gen3 (94/95) M62 Eaton Superchargers:
This is the 'foot' directly BEHIND the throttle body/inlet when facing the engine from the front. Measure the height. On the left is the Gen2 (92/93) on the right is the Gen3 (94/95):
Now the cooling fins. Notice how the Gen2 (92/93) fins on the LEFT supercharger extend all the way to the base? And the Gen3 (94/95) go only partway down:
Inlet comparison with the Gen2 (92/93) on the left and Gen3 (94/95) on the right:
The other telltale sign is the EGR inlet port. The Gen2 (92/93) is 0.5", and the Gen3 (94/95) is .625" (5/8").
Now which one do you have?