Convert your open differential to a locked differential without the costly expense of an limited-slip conversion.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with automatic transmissions only - medium case differentials
Brand:
ES#:
4841518
Mfg#:
056350LA01
In Stock
ON SALE!
SAVE 25%
$29.99
This product was last offered at the strikethrough price on 05-02-2026
Perfect service kit for your BMW, Includes the diff fluid and drain plug to get the job done.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
M22X1.5 Used on the rear differential
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
4213327
Mfg#:
33117525064
In Stock
$11.99
This product was last offered at the strikethrough price on 05-20-2026
Mineral based GL5 gear oil, for use on the street or the track
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
3097303
Mfg#:
20010
In Stock
18% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$14.95
This product was last offered at the strikethrough price on 05-07-2026
Reduces drivetrain slop, improves power transfer, restores precise differential support.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For Non-M Models Only
Single piece 6061 construction, optimized cooling, provisions for temp sensor and external cooler with removable air duct.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! For manual transmission vehicles only, or automatic transmission vehicles produced before 09/2007.
An aggressive mount design for increased cornering feel, and improved suspension performance.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3028139
Mfg#:
TDR9080BD2
In Stock
ON SALE!
SAVE 15%
$372.99
This product was last offered at the strikethrough price on 05-02-2026
Reduce play and install time!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms *Any defects or warranty clams will have to go directly to Team M Factory*
Differential fluid - SAE 75W-85 (GL-5)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Includes an MFactory Helical LSD, 2 Quarts of Redline 75w90 Diff, an ECS Magnetic plug, and Loctite 5970 gasket maker!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! For Vehicles with automatic transmission (ring gear machining or new ring&pinion required for manual transmission or DCT fitment)
Stock or limited-slip, we stock bearings, repair parts, complete differential units, and approved differential fluids so you can keep sending power to the axles without noise, harshness, or vibration.
Lifetime Replacement
