Guy came back by today and advised he put in a Zoom clutch kit and the car responded with a 7.78 @ 93 with no lock up or shifting issues.
His Richmonds are starting to really whine as they always seem to do so he checked on GM 4.10's for the sucky 7.625". Retail for only $865.
I told him to get a Strange or Moser 9" fully built for a little more than twice the price of GM gears that will blow out anyway. He stated he had to wait 'til the 22nd to get his oil check.
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2001 ECSB 4x4, 5.3, Radix, 3.0 pulley, VHP Trucker cam, 216/224 .551/.551 115 lsa, 1.8 Crane roller rockers, 4L65E, Yank SC3000, 3.73, Cal-Tracs, HPTuners.