question about changing rearend gears
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question about changing rearend gears
06 f350 dually 4x4 wit 410 gears...wanting to change to 373. Is the any issue with doin this on a 1 ton truck?? Also 2nd question..does anyone wit similiar truck have a rattle under dash at idle when coming to a stop??
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From: CA Sacramento
If you have the tools to do this, you can do it over a weekend easy. if you don't......... It may not be done right and it will take for ever.
Yea, you got to get 2 sets of gears and shims, I think that's it. And re-set your speedo because you are changing the rotating speed of the diff and that is where the truck gets the MPH from.
I wold normally do it my self if I had the tools, but I do not have the knowledge to do it and the risk of screwing it up is big with that. So I suggest getting a shop to do it if you are not familiar with the job.
I also suggest putting amsoil in the diffs. I did and I am glad I did
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Joined: Dec 2003
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From: Stuttgart, Ar
I think you're making a mistake going to 373's on a dually. You're not going to gain any fuel mileage if that's your goal. you might actually lose mileage and make your EGT's higher. 6.0's LIKE a little higher RPM's
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