gear ratio
Fleet Mechanic
Joined: Dec 2013
Posts: 1,268
Likes: 35
From: Utica, Nebraska
Crawl under the rear of the truck and look for a tag on the rear differential. Used to be two tags, one that has what oil weight to use and the other has gear ratio and whether or not it has a limited slip differential. Should say like 3 XX after it. If you have the old window tag still, it should be listed on there.
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HILLBILLY BOB
1948 - 1956 F1, F100 & Larger F-Series Trucks
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Nov 17, 2011 09:19 PM
