Rear axle ratio
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
If you crawl under your truck, there is usually a sticker or a tag with it printed on the top of the rear or on one of the axle tubes. 250's tend to have the 3.73. 350's have 3.73 and 4.10's duallies usually have 4.10's and 450's and 550's tend to have the 4.56 but all of this is just general. Also there is at the top of the page, a tab Articles/specs. If you click on it, it has a vin decoder, which should tell you what the rear end gearing was from the factory.
Good luck Juan. Let us know what you find.
Good luck Juan. Let us know what you find.
