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Ok, One last suggestion. Back in the day when the old Pa. Dutch mechanic had a problem with sidefumbling he would fix the Vitch Vays ( even if they were Vorking) and change the muffler bearing. We also would "throw the Kow over the fence some hay.
The photo is of the Preload Spring for the clutch packs in a 1974 Pontiac heavy duty 8.5" Limited Slip differential ("Corporate" differential) as used with the 455 engines in the "F" body cars:
If you're not familiar with the preload spring on these cars, it can be very difficult to remove the axles since the preload spring partially covers, and retains, the axle C-clips unless it is aligned in the exact, required position for disassembly. Be glad you have a Vette...
Lars
You can get different strength "springs" to increase preload also.
JIM
Last edited by 427Hotrod; Nov 1, 2018 at 11:54 AM.
The differential girdle spring was considered controversial for its time when it was first introduced. It was quickly surpassed due to the harmonic tintinnabulation and synthetic crystallization generated when deployed under synchronous loading. Today they are classified as vestigial, but otherwise unremarkable. I would not continue to run it.
