I believe that is a 3.55 / conventional ( non-limited slip ) / made by Ford / 5300 lb capacity
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 )
3.73 conventional axle ( non - limited slip )
No, I have a 3.55 in mine, I think there is one lower than that, and then a 3.73, and then a 4.10. What the hell is a 27? ---------------------------------------------------------------------- " OILMAN " had submitted a list of axle codes for the 1997 - 2004 F150 / F250 and the list shows axle code 27 as being a 3.31 conventional differential
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
Front axle is a TTB Dana 50 Rear is a 10.25" full floater
On a 1987 Ford F-250 : I believe axle code " 29 " means that it is a conventional axle ( non limited slip ) with ( 3.55 gears )
Sterling 10.25
drawing for bearings and seals of front differential axle
The O2 sensor on a 1988 F250 is not near the engine. Go to the exhaust manifold and down the length. It is near the catalytic converter.
Dana 44 or Dana 50 or Dana 60
There are three ways to find a gear 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.