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Showing results for tags '6 speed'.
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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. email@example.com Cheers guys.