Look for a 92-95 truck setup like this:
http://www.ebay.com/itm/Chevrolet-5-...r#ht_22wt_1145
The right bracket on trucks doesn't have a spot for smog pumps. The bracket is cleaner and smaller. V6 systems work but the crank must be a V8. I have a V6 system on my truck. I had to buy a V8 crank pulley to fit my ZZ4.