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 the right side axle half on a 1995 f150
I believe axle code " 18 " is a 3.08 conventional axle ( non limited slip )
65-90 Ft-Lbs.
Your rear axle is probably out. This would explain it moving in 4x4 because its utilizing the front axle.
how much would my 1991 ford f150 4x4 5.0 efi take in gas to full it up
i dont know what sizes they are,but the ratios in front and rear diffs will be exactly the same as each other.
There the same so it should work, although I'd upgrade to a better axle.
The gear oil best suited for a 1991 4x4 is 75w-40. The best idea, however, is to check the owner's manual which will provide recommended products for the vehicle.
Is it actually leaking from the axle seal or once it got warmed up did it shoot some fluid from the front differential vent hose ?
Should be a 35mm.
remove wheels.remove brake calipers, remove 4x4 locking hub.with special socket remove axle locking nut. brake rotor will the slide off enabling you to change bearings
The Axel code is on the drivers side door [On the post] it is stated on the sticker either a H9 which is a 3:55 ratio or an I9