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Re: What differential rear end do I have???
I'm not advocating not pulling the cover but if you jack the rear end up, put it in neutral and make a mark on your driveshaft you can make a very close estimate on gear ratio.
In one full rotation of your rear tire the driveshaft mark will go past 0 point X amount of times (short of 3 turns 2:54, just over 3 turns would be 3:04, 3-3/4 would be 3:73 etc.)
Backyard trick I picked up when I was a kid...
MOD
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Chad
'71 GMC 2500 Custom Ol Blue
'72 Custom Deluxe Highlander Stuffed Olive
'73 Trans Am
'13 Silverado 2500 Duramax Storm Trooper
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