Have ya tried looking at a S10 4.3 serp setup? My 90 Jimmy with a 4.3 doesn't have a smog pump. It has an idler pulley that just bolts right to the alternator/smogpump bracket.
If your bracket has the hole all you should need would be the shouldered bolt and the pulley, (and probably a shorter belt).
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72 C20 4X4 454 4 speed
89 Trans Am (was) 305 TPI 700r4
93 C1500 2wd Extended cab 350 700r4
98 Sonoma (TPI outa the Trans Am)
03 Yamaha 660 Raptor
03/04 660 Raptor
07 700 Raptor
85 Honda Odyssey
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