Thread: Ryan Weaver's 1969 Olds Cutlass S W31 Club Coupe
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Old 03-08-2015, 08:15 PM
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Ryan1969Chevelle Ryan1969Chevelle is offline
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Default Re: Ryan Weaver's 1969 Olds Cutlass S W31 Club Coupe
So let's figure out this rear end!

Jamie and I jacked her up nice and high, pulled the fill plug, and the diff cover. I was careful not to hurt the posi tag!

3.42:1 gears!! posi!!

We counted the pinion gear has 12 teeth and the ring gear has 41 teeth, just as the GM docs and our masking tape calculations suggested. So the Dealer BOS was wrong:-) and Al thought they were 3.91 gears all this time.

You can see orange daubs on the right side of the carrier.

You can see a white daub and yellow marks on the ring gear

Ryan





















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1969 Beaumont 350 Auto White Sold
1969 Beaumont 307 Auto Green Sold
1969 Chevelle SS 396-L35 Auto Blue Sold
1969 Oldsmobile Cutlass 'S' Sports Coupe W31
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