Rear end
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Welcome to the FTE Bill
Couple things you can do, first determine what axle the truck came with, listed on the data plate. Look for a tag on the differential housing, secured on a bolt, hopefully still there, and compare. The numbers will indicate what it is. Finally you could determine the axle ratio of the installed differential by jacking up a wheel and counting how many turns of the driveshaft versus the wheel and dividing.
Couple things you can do, first determine what axle the truck came with, listed on the data plate. Look for a tag on the differential housing, secured on a bolt, hopefully still there, and compare. The numbers will indicate what it is. Finally you could determine the axle ratio of the installed differential by jacking up a wheel and counting how many turns of the driveshaft versus the wheel and dividing.
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