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Re: gas mileage
Quote:
Originally Posted by jimbonice
I've got a dually with a 454, 4.10's and a 700r4. Don't expect big mileage gains. The big benefit is a much quieter truck on the highway; it loafs along at 70-80 now.
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That is a big beautiful truck. 80 grille and 77 trim? Have you done a little customizing?
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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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