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Re: Finding rear gearing, confused.
The reason you have to double the number is because of the spider gears. But doubling ONLY works if you have spider gears that are a 2:1 ratio. Not all are. It looks like the full-float 14 bolt may be 17:10 tooth count on side/spiders which is a 1.7:1 ratio.
You may well have the 3.73 you think you do. Just pull the cover and know for sure. Especially if you are going to sell it. Sell what you own what just what you think you have.
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44 Willys MB
52 M38A1
64 Corvette Coupe
68 Camaro 'vert LT1 & TH700
69 Z/28 355 12.6's @110
69 Chevy Short Step 4 1/2"/7" drop
72 Jimmy 4WD 4spd 4" & 35's
02 GMC 2500HD 4x4 Duramax
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