stupid is,as stupid does

3836bbl

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Took my car to Edgewater Motorsports Park this weekend.
Discovery:
Healthy 383,slicks,& a 4-speed=BROKEN 8 3/4 with 4:10 gears.
Will post carnage when I find my camera.Caps are not cracked,but the ring gear is missing
more teeth than a Kentucky Hillbilly !
 

droptop

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The weakest link in an 8 3/4 is the housing. Under hard acceleration, the housing will actually flex and allow the ring gear to deflect away from the pinion gear. Once you loose enough contact area, the teeth will break off. I have seen this before. :yesnod: You can add support to the back side of the housing to keep from flexing, or go to a dana. :cents:
 
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