Metric Mechanic Differentials

MM Differential Rebuilds

At Metric Mechanic we take differential building to another level and are proud to offer the finest rebuilds to both individuals and shops. There are plenty of reasons to choose the MM for your diff rebuild. Hopefully, this introduction to our numerous options will guide you towards understanding why we are the right choice for all of your differential needs.

What sets a Metric Mechanic differential apart from the rest? Is it the way we pay attention to detail? Is it our ability to offer you options that no one else can? Is it our ability to make the process quick and easy? We believe the answers to these questions are yes, and most importantly, so do our customers.

In general, we choose to not sell individual differential parts. There are a few exceptions, but we feel the process is faster, easier, and in the long run, much cheaper for both the customer and ourselves to have a professional make it right. We set the carrier breakaway torque to what it should be. We set the rolling torque, and most importantly we set gear backlash to insure you are getting the best differential available. Out stock includes shims for the pinions and the side flanges for almost every different style of differential. Our experience and access to the right tools and parts ensures that every differential we build is of the highest quality.

Also, we offer a wide range of options for your style whether you are a daily driver or racer looking for a little more time advantage. All differentials receive new seals and new bearings. We offer the ability to switch gear ratios easily because we keep many of them in stock. Our Variable Limited Slip, or VLS, allows for faster cornering, and better corner exiting acceleration. We offer a standard two clutch disc rebuild all the way up to a full five clutch disc race differential.

At Metric Mechanic our meticulous attention to detail, our inventory, and our countless years in the field means you get the best differential money can buy. Performance, reliability, and results are what “drive” us every day at Metric Mechanic.

MM Variable Limited Slips

All BMW Models ≥’98, (includes 2002, E9, E21, E12, E23, E24,
E28, E30, E31, E32, E34, E36/M3, E36/5, 318ti, Z3, Z3M Coupe and
Z3M Roaster: 1st Gen -168 & 188 Differentials- Z3, M23, M23 Coupe
ItemPriceCore Deposit
Variable Limited Slip 2 Disc$1,395$300-600
Sport Variable Limited Slip 3 Disc$1,595$300-600
Rally Variable Limited Slip 4 Disc$1,795$300-600
Race Variable Limited Slip 5 Disc$1,995$300-600
Standard LS Differentials$1,295$600
Standard Open, Non Limited Slip$1,095$600
E9 Sideloader, Non Limited Slip$1,395$600
E9 & E12 Sideloaders, Prices Vary$1,995$600+
2002 LS Conversion Flanges Pair$650
If you have 320i Limited Slip Flanges to send in, you will be refunded $200
Additional Charge for Gear Change Ratio$250/450
Metric Mechanic Differential Installations$400
E46, E39 (6 cyl. only) ’99 and later, 2nd Gen -188 Differentials
ItemPriceCore Deposit
Sport Variable Limited Slip 3 Disc$2,695$500
Additional Charge for Gear Change Ratio$450+
Replace Differential Bushings$200
HiTorque Flanges, Pair$800
Metric Mechanic Differential Installations$400
All M5’s, 8 Series,
E32 740i & 750i - 1st Gen 210 Differentials
(Excluding E60 & E65)
ItemPriceCore Deposit
Sport Variable Limited Slip 2 Disc$1,995$500
Additional Charge for Gear Change Ratio$450-750
Metric Mechanic Differential Installations$600
E39-540i, E38-740i - 2nd Gen - 210 Differentials
Z8, E52 - 2nd Gen - 210/215 Differentials
ItemPriceCore Deposit
Quaife
Conversion/Retrofit
$1,500No Deposit
Metric Mechanic Differential Installations$600
Owner must provide their own Quaife Unit & Core
Please call for gear options & more information.
E90, 323i, 325i, 328i, 330i, 2004 > 3rd Gen -188 Differentials
ItemPriceCore Deposit
Quaife
Conversion/Retrofi t with carrier tapered Roller Bearing
for greater load carrying capacity
$1,800No Deposit
Metric Mechanic Differential Installations$600
Owner must provide their own Quaife Unit & Core
E90 & E92 335i 2006 > 3rd Gen 210/215 Differentials
ItemPriceCore Deposit
Quaife
Conversion/Retrofit with carrier tapered Roller Bearing for greater load carrying capacity
$1,800No Deposit
Metric Mechanic Differential Installations$600
Owner must provide their own Quaife Unit & Core