There are four ways to find a ratio.
1 A dealer can normally tell from the vin number.
2 There are normally tags or labels on the axle that have part number, gear ratio, and fluid requirement
info.
3 You can count how many times you have to turn the driveshaft to get one complete turn of the tires.
4 You can divide the number of teeth on the ring gear and divide by number of teeth on the pinion.
how to remove rear axle from 1988 f250 ford
On a 1986 Ford F-250 : I believe " 39 " is a conventional axle ( non limited slip ) with ( 3.55 gearing )
According to the ( 1996 ) Ford Bronco Owner Guide : Axle code ( 19 ) is a Ford conventional ( non Ford Traction Lok / limited slip ) axle with a 3.55 ratio
axle ratio cade for ford super duty”
The axle ratio on a 1969 Ford Mustang axle was 2.75:1
drawing for bearings and seals of front differential axle
I was looking at the 1997 Ford F-250 Heavy Duty owners manual and there is a " C 5 " axle code listed 4.10 ratio - limited slip manufacturer - Ford capacity - 6,250 pounds
I am not positive about this but, I believe that this indicates that the axle has a 3.00:1 gear ratio. Check with you local Ford dealer for a definitive answer.
On a 2003 Ford Explorer : Open the drivers door and there is an information sticker on the latch pillar You will find the axle code under " axle " Once you have the axle code you can determine the axle ratio
I believe the axle code is listed on a sticker on the end of the drivers door The axle code will correspond to an axle ratio Once a person knows the axle code , the ratio can be looked up
I believe axle code 19 is for a Ford conventional axle ( non limited slip ) with a 3.55 ratio
3.31 ratio