Quote:
Originally Posted by Stielow
Ford 9 inch gears are my nemesis. I have lost track of how many sets I have failed in my life. I do not think it is the fault of the diff assemblers. My data shows it is poor gear manufacturing. I attempt to use real Ford gears and they seem to be the quietest and most durable. Occasionally you will get a good aftermarket set of gears. I found out that most gear suppliers set up there tooling / gear grinding and let it run until it is way out of tolerance. So if you get an "Early" set they may be good and if you get one of the last ones they maybe bad.
US Gear is going to make some "Stealth Gear" that are suppose to be more to OE tolerances. My buddy has a set to test on how quite they using some "real" measuring equipment. (An actual engineering test).
I hope they are good and stay good. Our community needs a better solution than digging though junk yards to find usable old Ford gears to get a quite gear set.
Mark
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Glad to see this. Thought it was just my set that is loud. It’s surviving for now but for how long I don’t know.
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