Popular Rockwell Axle Upgrade Parts:


ARB Air Locker (RD145)
Eaton Detroit Locker (225S15)
Yukon Grizzly Locker (YGLR2.5-16)
RCV 16 Spline Axle Shafts (CVJRCK-16)
RCV 16 Spline Flanges (RCK-SLUG-16T)
RCV 47 Spline Axle Shafts (CVJRCK-47)
RCV 47 Spline Flanges (RCK-SLUG-16T)
RCV 47 Spline Spool (RCK-SPL-47)
Mile Market Lock-Out Hubs (11167-01)
Billet Inner Axle Seal Upgrade


Rockwell Axle Replacement Parts:


Pinion Shaft Parts OEM PN Alternative PNs
Pinion Seals 7521241 / S-E725 12470104 / A-1205-U-515
Main Pinion Bearing 712157 / S-17589 Timken 29585 / 29521
Support Pinion Bearing 714009 / S-17590 Timken 22780 / 22720
Pinion Shim Pack 7521764
Pinion Nut 7521234
Pinion Nut Washer 7521235

Intermediate Shaft Parts OEM PN Alternative PNs
Int. Shaft Main Bearing 10937642 / S-17588 Bower M-1215T
Int. Shaft Support Bearing MS19081-193 Bower M-1215T

Gaskets OEM PN
Rebuild Gasket Kit 7521735 / 5330-00-752-1735
Top Cover Gasket 7521780 / 5330-01-170-4979
Side Cover Gasket 7521671 / 5330-01-392-0308

Differential Parts OEM PN Alternative PNs
Carrier Bearings MS19081-103 / 3110-00-572-9126 Timken 395 / 394A
Drain Plug 7521743 / 4730-00-595-4827
Fill Plug 7326126 / 5365-00-732-6126
Fill Plug Copper Gasket 7748905

Steering Knuckle Parts OEM PN Alternative PNs
Dust Boot (Silicone) S-19212 8376530BL
Dust Boot (w/ Zipper) 7410883 / 7415911
Dust Boot (OEM) 8376530 / S-13961
Outer Dust Boot Clamp 7071099 / S-F309
Inner Dust Boot Clamp 7071100 / S-F310
King Pin Bushing 5283738 / S-16162
King Pin Bushing Spacer Kit 10896717 / 2530-01-079-8450
King Pin Bushing Reemer 1-3/16" to 1-11/32"

Hub Parts OEM PN Alternative PNs
Axle Flange Bolts 7521631
Axle Drive Flange Gasket 7521787 / S-17624 298446 / 2208T306
Spindle Nut 7521633 / S-F236 1227M13 / 298443
Spindle Nut Lock Washer 7521650 / S-16997 1229-G-969
Outer Wheel Bearing Seal 7061238 / S-C421 5330007061238
Outer Wheel Bearing 10945151 / S-141-76 Timken 3994/3920
Inner Wheel Bearing 10948079 / S-14175 Timken 392/3920
King Pin Bushing Spacer Kit 10896717 / 2530-01-079-8450
King Pin Bushing Reemer 1-3/16" to 1-11/32"
Spindle Bushing 7521681 / S-15515
Wheel Stud (RH) 7521661 / S-13699
Wheel Stud (LH) 7521660 / S-13698
Lug Nut (RH) 537803 / S-37888 3/4"-16 (RH)
Lug Nut (LH) 537804 / S-37889 3/4"-16 (LH)

Axle Shaft Parts OEM PN Alternative PNs
Thrust Washer (Outer) 8738033
Thrust Washer (Inner) 8738034
U-Joint (Snap Ring Style) 8738036 / 538395R91 CP750N / CP750N1
Axle Shaft Seal Retainer 8738031
Front Axle Shaft Seal 7521789 / 8738083 7521789 / 8738032
King Pin Bushing 5283738 / S-16162
King Pin Bushing Spacer Kit 10896717 / 2530-01-079-8450
King Pin Bushing Reemer 1-3/16" to 1-11/32"

Tie Rod Ends OEM PN
Tie Rod End (RH) 7521601 / S-E997
Tie Rod End (LH) 7521602 / S-E998


The above listed part numbers are correct to the best of our knowledge, however, we cannot guarantee their accuracy.