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US Gear overdrive shift controller
Hey there Gents, I have a 1989 Chev V3500 crew cab with a 489 stroker and a US Gear overdrive to get my 4.10’s down to decent rpm on the hwy. A couple years ago my shift controller box failed and so have been manually opening the hood and touching the appropriate wire with 12v to shift...- LarryB
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- overdrive shift module shifter us gear
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- Forum: Towing and Hauling
