03/09/2026
FN2 Box in for rebuild!
Today we had this lovely Mugen FN2 with us for gearbox related issues
Upon inspection we soon found the issue! A fractured selector fork meaning 3/4 hub and sleeve were leaving part of the synchro ring jammed in the top bearing on the countershaft and the other part floating about inside the box!
A full clean inspection and rebuild using new bearings and seals and it’s ready to install tomorrow!
⚙️new 3/4 hub synchro sleeve unit
⚙️replacement 4th gear (mainshaft)
⚙️replacement good used 3/4 selector fork
⚙️replacement good used 5/6 hub sleeve and synchro
⚙️new bearing and seals
⚙️shimmed to spec
All parts in stock on the shelf
✅ over 10 years experience building boxes
✅ 5 star review
✅ 💯 customer satisfaction
📍Lancashire, North West
If you are looking for any Honda gearbox service or repair then give us a call to get booked in
☎️ 07792196512
Dave