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      05-12-2017, 02:17 PM   #1
Synchrotech
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MFactory LSD **DISCOUNTS & SPECIAL OFFERS**

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Click the link below to shop our store or give us a call M-F 7:30-4:00 PST (909) 592-5933

Shop Now - MFactory LSD / Differential Carrier Assembly / Differential Rebuild Parts


MFactory Helical LSD (Ships Worldwide) MSRP $999.95
Gain a prominent advantage over the competition with the MFactory Helical Limited Slip Differential. Through the smooth and constant distribution of power to the wheels, the MFactory Helical LSD puts the power-to-the-ground and maximizes your vehicle's traction!
NOTE**Replacing an OEM Welded differential will also require a ring and pinion set or custom machining**

Standard Carrier Rebuild Service: (USA only) MSRP $1499.95-$1999.95
Ship your pumpkin to us and we'll handle the rest!
- Prior to assembly with your New MFactory Helical LSD, Seals, Bolts and Shims, all parts are cleaned, inspected, and polished in a deburring machine with ceramic media.
- Preload, gear clearance and torque will all be inspected and adjusted for superior performance.
- Housings are media blasted to give a 'better than new' look.
**Master Rebuild Service with new bearings also available for an additional charge**

Master Carrier Rebuild Service (USA only): MSRP $1999.95-$2699.95
(Includes Master Rebuild Kit with all new bearings & MFactory helical LSD Installed):
Ship your pumpkin to us and we'll handle the rest!
- Prior to assembly with your Master Rebuild Kit & New MFactory Helical LSD, all parts are cleaned, inspected, and polished in a deburring machine with ceramic media.
- Preload, gear clearance and torque will all be inspected and adjusted for superior performance.
- Housings are media blasted to give a 'better than new' look.

Core exchange Service (USA only): $500 Core Deposit
- If you prefer the we ship you a pre-built unit first and then send your core back later, there is an additional $500 Core Deposit. This is refundable after we receive your core. A pre-paid return shipping label will be provided with your rebuilt differential assembly. Just drain your old pumpkin, put it in a plastic bag and send the core back in the same box that your new diff arrives in.
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Last edited by Synchrotech; 07-03-2017 at 02:06 PM.
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      05-12-2017, 02:22 PM   #2
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15 LSDs and built carriers shipped this week. Thanks for the support!!
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      05-12-2017, 11:54 PM   #3
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Is the 128 diff welded? what is involved in machining off the weld? I have access to a cnc mill and lathe as well as manual machines.
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      05-13-2017, 11:38 AM   #4
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Quote:
Originally Posted by derekh View Post
Is the 128 diff welded? what is involved in machining off the weld? I have access to a cnc mill and lathe as well as manual machines.
It should be a bolted unit but I would need the sticker ID along with ratio/year/make/model/trans-type to confirm. It is easy to pop off the cover and see if you do not have the ID sticker.

Bolted units are pretty straight forward to install where the welded require custom machining and spacers. I would not recommend trying to do the machining yourself. It took quite a bit of R&D to perfect the process.
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      05-15-2017, 06:04 PM   #5
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      05-15-2017, 07:56 PM   #6
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Sticker ID as in VIN or is that something else i don't know of? its a sport pack coupe 128i 2011 manual. couldn't tell you the ratio. I work in tool and die, i believe you that its tricky. However i'm confident i can figure out how to do what is needed.
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      05-16-2017, 01:43 PM   #7
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Quote:
Originally Posted by derekh View Post
Sticker ID as in VIN or is that something else i don't know of? its a sport pack coupe 128i 2011 manual. couldn't tell you the ratio. I work in tool and die, i believe you that its tricky. However i'm confident i can figure out how to do what is needed.
The differential housing has a white sticker on the top with the ID number and gear ratio. You can look at some eBay listings for differentials and you will see a picture of the ID sticker.

As long as you measure the correct offset distance from the tooth tip and machine/shim properly to the original position when bolted to the LSD you will be fine.
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      05-19-2017, 01:35 PM   #8
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      08-03-2017, 06:40 PM   #9
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Online Store - Shop Now

BMW Differential Carriers In Stock with MFactory Helical LSD installed:
$1499.95 + $500 core charge E92-215 3.46 ratio Aug 06 - Aug 07 335i AT Serial# 756151/ 7566152/ 7561278
$1499.95 + $500 core charge E92-188 3.46 ratio Sept 07+ 335i 135i AT Serial# 7572054/ 7572055
$1999.95 + $500 core charge E92-215 3.08 ratio 07+ 335i 135i Manual Serial# 7561227/ 7571186/ 7571187
$1999.95 + $500 core charge E92-215 2.56 ratio 135i 335i DCT Serial# 7570280
$1999.95 + $500 core charge E92-215 2.81 ratio 335D Serial# 7571175/ 7571176

Clearance Pumpkins with Helical LSD Installed:
$1529.96 (No Core Charge) E89-188 Z4 3.64 ratio 23i 30i 2009+ Serial# 7576666
$1799.96 (No Core Charge) E89-215 Z4 3.08 ratio 35i Serial# 7571594/ 7571595
$1529.96 (No Core Charge) E93-188 3.91 ratio 07-13 328i convertible Serial# 7566191
$1529.96 (No Core Charge) E46-188 3.38 ratio 01-06 330i 330Ci AT Serial# 7505393/ 7505394

For those who want to install the LSD yourself: E92/E39/E36/E46 Helical LSD - $999.95 + Shipping
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Last edited by Synchrotech; 11-27-2017 at 02:12 PM.
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      12-12-2017, 06:16 PM   #10
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** Special Offer **

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10% OFF MFactory LSD / Differential Carrier Assembly / Differential Rebuild Parts
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