Rebuilt truck differentials
New, used and rebuilt differentials and differential parts for big rigs, trucks and equipment, from every major axle maker.
We carry new, used and rebuilt truck differentials and differential parts, and we service and install them. Our staff can help with any differential question, from reading the axle tag to choosing a ratio. If your make is not listed below, call: we stock all makes and models.
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Caterpillar (CAT)
Rebuilt CAT differentials and parts: standard, limited slip, no spin and locking units for Caterpillar equipment.
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Dana
Rebuilt Dana differentials and rear axle assemblies, plus gears, lockers, yokes, shafts and seal kits.
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Eaton
Exchange Eaton differentials: DS/RS tandems, controlled traction, two-speed and tridem axles, plus gear set ID help.
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Fabco
Fabco steerable drive and hub reduction axles for 4x4 and 6x6 trucks, rebuilt, plus the transfer cases they pair with.
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Ford
Rebuilt Ford differentials, plus how to decode a Ford axle tag: ratio, limited slip, ring gear size and build date.
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FWD
New, used and rebuilt FWD differentials, plus rebuild kits and hard to find, out of production parts.
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International
International and I.H.C. front, rear and two-speed differentials: RA351, RA472, N400, G175T and more.
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Isuzu
Rebuilt Isuzu differentials for NPR, NQR, FTR, FVR and older models, listed by year and ratio.
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Mack
Rebuilt Mack differential carriers, Mack ring and pinion sets and kits, plus help reading Mack axle codes.
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Marmon-Herrington
Rebuilt Marmon-Herrington differentials and MT-series steer axles for all-wheel drive trucks.
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Meritor
Rebuilt Meritor differentials, genuine gear sets by part number and ratio, and how to read the Meritor ID plate.
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Navistar
Rebuilt Navistar differentials such as the RA-42, plus rebuild kits, bearing kits and ring and pinion sets.
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Oshkosh
New, used and rebuilt Oshkosh truck differentials, plus hard to find and out of production parts.
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Rockwell
Rebuilt Rockwell tandem, front steer and single axle differentials, exchange units, and we buy Rockwell cores.
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Spicer
Exchange and rebuilt Spicer differentials such as the 23105C, plus Dana Spicer differential parts.
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Sterling
Rebuilt Sterling 10.5 full floating differentials, with ring gear, spline, ratio and brake specifications.
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Timken
Rebuilt old style Timken truck differentials and parts, the forerunners of the Rockwell and Meritor line.
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ZF
Remanufactured ZF differentials and parts, serviced and installed, shipped worldwide.
View detailsHow to work out your differential gear ratio
Your axle gear ratio is how many times the driveshaft turns for every full turn of the tire. It is often printed on the axle tag, and some manufacturers encode it in the vehicle's VIN. If neither is available, count the teeth: the ratio is the number of teeth on the ring gear divided by the number of teeth on the pinion gear.
| Ring gear teeth / pinion gear teeth | 41 / 11 = 3.73 ratio |
|---|
Always match the ratio of the axle you are replacing, and on a tandem, match both axles to each other.
Order online or call
Browse rebuilt differentials and differential parts in our online store, or call the differential desk at (877) 776-4600 or 407-872-1901.
Need a transmission or differential today?
Give us the model and serial tag number, or the ratio off the differential tag. We will find the unit or the part, price it and ship it.