Quote:
Originally Posted by 1RAMAIR1
That makes 2 of us. (lol) Today we pulled the Rear Differential apart and found something unusual. The setup appears to have never been taken apart and the original GM part number stampings were found on the Ring Gear. The Build-sheet for the car says it came with 3:90 series gears. When we opened it up, the gears were 4:11. What are the chances that the Factory installed the wrong ratio gears for the car?
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I would think it's more likely been apart even though it doesn't look like it. Factory stampings are not unusual, either.
What
would be unusual would be if it was stamped as a 4:11 but was really a 3.90 (or vise versa).
K
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