Re: 12-Bolt Spool Bearing Pre-Load
Thomas:
I read years ago that the total shim thickness is around .484. I have measured many stock cast iron shims and found this to be pretty accurate. My latest one came in at .488. I'm sure every housing is different but the .484 will get you in the ballpark. I've done so many that you get a feel how hard the last shim drives in and how easy the carrier comes out. Speaking of which, placing a boxed end wrench on a ring gear bolt so it jams against the housing and rotating the pinion clockwise is the easy way to get the carrier moving out enough to get 2 pry bars in the bearings/shims. Hope this helps.
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