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Re: My Luxurious late model truck (not so much)
I know I was very pleased with the RPM drop I experienced in my '83 (same gearing as you), I hope you will be too. Fortunately for you there is a (relatively) easy way to correct your speedometer. With your previous experience with these trucks I would not doubt that you are familiar with modifying the DRAC, but if you are not: GM DRAC/VSSB Calibration
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Devin
1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt
1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050
1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350
My Introduction with my '83s History
New Daily, the '96
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