Drivetrain› Differentials and Rear-End Components

MFactory

Helical Limited Slip Differential

$1,149.95

SKU: MF-TRS-05E92

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

By maximizing traction, this unit improves vehicle handling for street, strip, and track applications.

It operates maintenance-free, eliminating the need for special fluids or rebuilds.
Show original supplier description
Designed using Solidworks 3D CAD and Cosmos FEA software, the differential features advanced gear geometry that reduces parasitic drivetrain losses, potentially transferring more power to the ground than standard open differentials. Built for extreme durability, the unit is diamond-cut from forged Japanese SAE 4320 and SAE 9310 steel. It undergoes double tempering, a super sub-zero treatment, and advanced shot peening to increase surface hardness and withstand the shock loads of competitive drag racing. Fitment depends heavily on the specific BMW model and production date. For many models, such as the E36, E39, E46, and non-35i E8X/E9X/E60 variants, this is a direct bolt-on replacement. However, it does NOT fit models with a welded-on OEM ring gear, including 335i MT/DCT models produced after 03/2007, 335d, F20, and F30 variants. For these incompatible configurations, the OEM crown wheel must be welded to the new differential or a new MFactory final drive gear set must be fitted. Professional installation and fluid changes after the first 300-400 miles are recommended.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMFactory
Part NumberMF-TRS-05E92
CategoryDrivetrain
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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