My Cart


6-Speed Standard Trans Service


Transmission build service for the 6-Speed EVO 8/9 MR. This rebuild service will fix the most common issues with this gearbox. Because it retains the OEM Mitsubishi gear set, it is not designed for higher powered vehicles.

This build includes replacing:

Synchros: 3rd - 6th Gears
Synchro Springs: 3rd - 6th Gears
Synchro Keys: 3rd - 6th Gears (Modified to prevent the springs from breaking)
Hub & Sleeve: 5th - 6th Gear
Input Shaft Oil Seal
CV Axle Seal
Case Plug
Drain Plug Washer
Fill Plug Washer

This build service includes several key components found on the Input Shaft. Mitsubishi, in their infamous wisdom, has deemed the Intermediate Shaft as non-serviceable and will only sell it as a complete cluster. Meaning, if your synchro for 2nd gear is bad or if you have a bad shaft bearing, they require a complete assembly to be purchased. More information on the Intermediate Shaft can be found on our website HERE


We also spend a lot of time on synchro timing, alignment and operation to give you the best shift possible.  Click -> Synchro Blueprinting


WPC is a permanent surface treatment that reduces friction while strengthening the part. Its unique micro-dimple formation pattern greatly reduces friction and is unmatched by conventional methods of surface treatment. It is a proven process that has been utilized for many years in the racing and automotive industry and is complimented by utilizing our REM/ISF treatment. WPC can strengthen parts in two ways. First it adds an extremely high level of compressive stress at, and near, the surface. The second, is that the WPC treatment creates a Nano - Crystalline structure at the surface of the metal. Both of these mean that metal fatigue and crack initiation are both noticeably reduced; thus strengthening the gears and shafts inside of the transmission.


REM / ISF is a gentle polish on the gears done by machine that will smooth and remove some stress concentrations uniformly. It also polishes the gears in the area they make contact with other parts, so you have less friction loss which means less heat, better fuel economy, and longer life.


Please note- any additional parts needed which are not listed below and not part of this build will cost extra to replace.  We will email with pictures and detailed information if this is the case.  We know you do not like surprises, so we try to make this process as painless as possible.  If this turns out to be the case, please note that it is due to the fact that we want you to have the highest quality trans possible.  Again, quality is the key here and sometimes it costs more to do this in an aging platform.  It is not worth the risk of using a sub-par part if inspection reveals it is a weak link.


Parts cleaned using industrial parts washers and Aluma Blast coating.  Exceptionally clean units is one of the reasons why our transmissions are the highest quality in the business!  We have state-of-the-art cleaning equipment which other trans builders could only dream of.  More info HERE

With the best cleaning equipment, we also have a very clean facility.  All units are built in a spotless environment and using tools, and benches, which are clean and only used for assembly purposes.  In other words, the same tools used to pull your dirty old trans out of your car are NOT the same tools used to rebuild your pristine unit afterward. Take a look at the typical shop and check their tools.  It is shocking how dirty things are in most shops and that dirt will end up in your unit.  That doesn't happen here. 


Due to the weight of the transmission, it is recommend to ship via freight pallet. Email us if you need a freight shipping quote or if you would like us to help arrange the shipping!

Hello You!

Enter your email address for stock alerts, discounts, promotions and more!