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Found 2 results

  1. All prices include GST. Complete Rebuild: This rebuild addresses some inherent weaknesses in the 6 speed gearbox if you’re chasing more than standard power, but want to retain the otherwise very nice 6-speed unit. The narrower gears are weaker than the 5 speed gears. Shot peening and ISF/REM improves fatigue resistance of gears by around 30%, as well as lowering oil temperatures across torque ranges by around 5*C. High temps in the 6 speed is one of the main weaknesses. ISF is the best way to keep oil temperatures in your gearbox as low as possible, and stop bearing failure and shaft separation. What’s included: Everything in the “standard” rebuild (see below), plus: Hot tank gear set Magnetic crack test gear set under black light Shot peen gears, hubs and shafts using SAE guidelines (J2441) Isotropic Super-Finish (ISF/REM) gear set New centre diff crown wheel bolts Dimple Magnetic drain plug Price: $1,850 Standard Rebuild: Rebuilt to factory specs, using genuine Mitsubishi parts only. Guaranteed “as good as new” What’s included: Strip Inspect and compare components against factory tolerances Report (written) including all clearance specs Chemical clean components Bead blast case Check shafts for runout Final clean, ready for assembly Meticulous reassembly in dedicated clean room New snap rings and shims New seals and O rings New roll pins New input shaft bearings Price: $1,129 Add: New synchros, springs and keys: $420 (includes 3rd,4th, 5th, 6th and R) Many 6 speeds experience 3rd and 4th shifting issues. This is usually related to hub and sleeve damage, and sometimes gear dog engagement tooth damage. Some or all of the following parts are required to fix the issue: 3-4 hub and sleeve: $175 3rd gear (input): $145 4th gear (input): $185 3-4 selector fork: $65 We will report on the condition of the centre diff bearings but these do not usually require replacing. If needed, we can supply and fit these for an additional $135. One of the most frustrating aspects of repairing the 6-speed transmission is the fact that (as far as we know) we cannot replace countershaft components individually. Mitsubishi for whatever reason have not made any of the parts available separately, including 1st and 2nd synchro, hub and slider, and 1st and 2nd gear. A new countershaft assembly from Mitsubishi is around $1,500 so often it is more economical to source another gearbox if issues occur with these components. We can repair some components and will report before proceeding with any additional work.
  2. Hi guys and girls, We know that a lot of VIII and IX owners would love to keep their 6-speed gearbox but are often let down by the relative lack of strength compared to the 5-speed cousin. They're nice to use but unfortunately don't put up that well with 250kw+ that many of these cars run. The only solution has, up until now, been to "downgrade" to the older, more reliable 5-speed. Well, we have been working on a solution. We've built a couple of these now and they're running reliably in track oriented cars and performing very well. We start with an Albins helical replacement gear set for 3rd, 4th and 5th. These are only available to builders, not to the general public, for reasons I will explain later. (Albins left, stock right) They are a coarser tooth profile with a narrower helical angle, meaning better strength (Albins bottom, stock top). The design also eliminates the strange OEM thrust ring arrangement on 4th. This leads to better support on the shaft, less flex and so on. Made right here in Australia to Albins' usual excellent quality. We then shot peen and ISF the lot. comparison of stock vs. ISF treated Albins (ISF Albins bottom, stock top): We build them to our specs which we keep close to our chest. These are highly customised items and run clearances that are controlled via a sequence of shims on the countershaft. They are not "drop in" items, hence not really sold to the public. This box is every bit as strong as a strengthened 5 speed. It is not bulletproof (what is?), but is extremely reliable. ***EDIT*** We do still build these, for a number of reasons prices are higher these days to when originally offered, including a higher rate from albins, being able to offer all new genuine synchros, and the increase in parts prices due to the weak AUD$. Price guild for a built unit with all the bells and whistles is around $6,000. Cheers guys.