la122685 Posted March 28, 2013 Author Report Share Posted March 28, 2013 just what does that part do for your truck??thanks in advance http://www.silveradoss.com/forums/topic/81301-kelley-performance-4l65e-build-blk-sss-04-sss/ look into this thread. John explains it in detail. Quote Link to comment Share on other sites More sharing options...
chevyman57 Posted March 28, 2013 Report Share Posted March 28, 2013 thanks I'll check it out Quote Link to comment Share on other sites More sharing options...
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