lookin for some gears
#1
#7
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#8
I don't know. The first set I might have believed you but the second I had done at another shop and they did a painful amount of explaining how they installed them and they still whine at certain speeds. I'd be hard pressed to think they installed them wrong. I'm not the only one to experience gear whine with 4.10's.
#9
I also have 4.10 gears and mine are quiet. I went with Motive and had a friend that works at a large Ford Dealership do the install. He has the factory setup tools and has done several gear swaps. I am very pleased with mine. My tires are about the same size as yours (265/70/17) and at 70 mph I'm turning about 2300 - 2400 rpm. Gas mileage stayed about the same or might have improved slightly.