Revving too high
I've just bought a 71 c10 a few weeks ago it's running a 454 aand th 400 box,12 bolt axle with 4-11 gears,at 55 mph it's revving at about 3500 rpm,what's the best solution to solve this and bring the revs down? A gear vendor overdrive? Or a different crown wheel and pinion? Cheers for any help
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