I'm selling the stock 105amp Delphi alternator that came off of a 2002 GMC Sierra Z71 5.3 ECSB. Since I own and operate a starter and alternator rebuilding shop in the Kansas City area, I went through this unit (which worked just fine when I took it off the truck- I replaced it with a factory 150amp Delphi alt.) and replaced the bearings, brushes, and voltage regulator. It puts out over 135amps at full load on my shop's test bench. Here are all the GM trucks that it will fit:

(2004-03) Cadillac Escalade 5.3L, 6.0L
(2004-01) Chev. Astro, GMC Safari 4.3L
(2004-02) Chev. Avalanche 5.3L, 8.1L
(2004-01) Chev. Express, GMC Savana 4.3L, 5.0L, 5.7L, 6.0L, 6.5L, 8.1L
(2005-99) Chev. Silverado, GMC Sierra 4.3L, 4.8L, 5.3L, 6.0L, 6.5L, 6.6L, 8.1L
(2005-00) Chev. Suburban 5.3L, 6.0L, 8.1L
(2005-00) Chev. Tahoe, GMC Yukon 4.8L, 5.3L, 6.0L, 8.1L


It's exactly like the one I sold to a previous customer from here on PerformanceTrucks.net (check my trader feedback) and I'll take $70.00 shipped for it.