Rockwell Differentials
Thousands of differentials in stock! Ready for immediate shipment. Call us today, receive your item tomorrow. We have a full line of Rockwell differentials available. We also stock replacement parts for all differential models, kits, rebuild kits, and more. Differential and parts available for all Rockwell models. We have been successfully delivering differentials, transmissions, transfer cases, axles, PTOs and more truck parts for over 20 years and offer a one-year unlimited mileage warranty on all rebuilt differentials we sell! Whatever model you need, contact us at 877-776-4600, and we can locate it for you.
Rebuilt Rockwell Differential Models Available:
Single Speed Differential
- F106
- R170
- RS20145
- RS23160
Two Speed Differential (with or without diff lock)
- RS15210
- RS17220
- RS 15-120 S/A
- RS 23-160 S/A
- RS21230
- RS 13-120 S/A
- RS 17-140 S/A
Front Differential Axle
- SQHD
- SQ100
- SQ100-P
- SSHD
- RT40-145
- RD20145
- RDL20145
- RPL20145
- SQHP
- RT46-160
- RD23160
- RDL20145
- RP20145
- RDL23-160
- RP23-160
- RPL23160
Rear Axle Differential
- SQHP
- SQAR
- SQHD
- SQ100
- SSHD
- RT-40-145
- RR20145
- RRL20145
- RR23160
- RRL23160
- RT46-160
For assistance identifying the individual parts for your differential, view or download differential manuals and parts lists visit our manuals page. See images below for assistance in identifying your ring & pinion, click the images for a larger view:
Some unit’s numbers are located on the edge of the ring gear.
Retreive these stamped numbers inside of ring gear holes, between bolt holes.
Take note of the stamped numbers off the end of the pinion where the nut goes on. The tooth count is used for determining the ratio.
Rockwell Differential Assembly:
- 132-C
- 145
- 145R
- 5800W
- Centruty Class 120
- D100
- D140
- FLC112SD
- H150
- H170
- H172
- L9000
- LN8000
- MD20143
- MR20143M
- R200
- RH23160
- RS16145
- RS17140
- RS17145
- RS19145
- RS21145
- RS23161
- RS23180
- RS23186
- RSL23160
- RSL23180
- SLHDF
- SQHS
- SQR100
- U200
- RT52185
This is just a few Rockwell Differentials and axle housing’s we carry for trucks and equipment of all brands including Kenworth, Peterbilt, Freightliner, Mack, Western Star, International, GMC, Ford and Sterling Trucks. we also stock all Ratio ring and pinion gears.
Rockwell Differentials with or without lube pump: RD20-145, RR20-145 (RS21-145), RD20-145
WITH LOCK RR20-145 (RS21-145), RS15-120, RS21-230, RD23-160, RS23-160, RS23-240
Give us a call we will be happy to assist you.