10/10/2026
🚨 EP3 K-Series 6-Speed Gearbox Rebuild 🚨
We had another K-Series 6-speed gearbox on the bench last week for a full strip-down and rebuild, and this one certainly gave us a first!
Upon opening the gearbox, we discovered a microfibre cloth wrapped around the differential. Bear in mind, this gearbox had been fitted and running in a vehicle! 😮
Following a full inspection, we found significant damage to the dog teeth on 3rd and 4th gear, damaged synchros and a considerable amount of swarf throughout the gearbox.
We advised the customer on a set of good, known-working replacement gears, along with a full Synchrotech Transmission carbon synchro set and a complete bearing and seal kit.
As the gearbox is being built for a turbo application, we also recommended fitting an Patrick limited-slip differential at the same time.
With everything stripped down, we got to work cleaning and preparing all components, including vapour blasting both casings and the gear selector housing, followed by zinc coating all of the hardware to give everything a fresh, high-quality finish.
To complete the build, we also fitted a set of Your Trusted Source! detent and shifter springs to give the gear changes a much firmer, more positive feel — and the difference really is impressive! 🔧
Another K-Series 6-speed brought back to life and built ready for some power. 💪
📩 For all enquiries, please DM, call, or email us for competitive pricing — from individual parts to full builds, we’ll tailor everything to suit your needs and goals.
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🔧 Specialists in Honda performance, upgrades & custom builds