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Rear Gears

919 views 8 replies 7 participants last post by  Guard 5.0 
#1 ·
After 3 tries in 2 days my local shop can't replace my stock 3:15 gears to 3:55 gears without breaking shims or creating rear end hum ? Are they missing something?
 
#5 ·
once again Volt has the answer.

at least they ain't saying "that's normal"
He pre-empted me. Was thinking the same thing, but went ahead and read further, then saw his post. I've set up gears for a mighty long time, "cutting my teeth" on a Dana 44 in my old man's '55 Mercury, then along came the Ford 9" in '57.........

I wonder though what is meant by "crushing shims"?

EDIT: Wanted to say it in a softer way: They don't know what they're doing.
 
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