This is pretty straight forward; I did the synchro in my gearbox a couple of years ago and the box can be done in a couple of hours. Mine was the 2nd gear synchro, it was just barely out of spec. I have a good bit of experience with Hewland boxes and can go up and down through the box without the clutch......................worn synchros are actually harder because they partially work and are not consistent...........I could just change down to 2nd but it was a pain. I pulled the box and changed the parts in an afternoon.


Tom