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Old 05-19-2015, 12:01 AM   #9
Captainfab
60-66 Nut

 
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,254
Re: 61 ho 32 to 64 12 bolt ?

Okay here's what I came up with. These measurements are not ultra precise, but are fairly close. With the truck 12 bolt, the center of the axle tube to the center of the U-joint on the pinion yoke measures 11-5/8". The Eaton HO32 measures 12-1/4" from the center of the axle tube to the center of the U-joint on the pinion yoke. So the driveshaft will technically be 5/8" too short if you swap in a truck 12 bolt, but with that small amount it may be fine. It just depends on your particular driveshaft and trans.
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