Gearbox Rebuilds (North West)

[stinkerstag]

Hi again, I have a synchro problem on 3rd gear. I put some slick 50 in the box in the hope it may have helped... Realistically I think the box needs to come out for replacement synchro's.
Does anyone know anyone in the North West who would undertake this task & what to expect to pay? How many synchros would one change? Someone mentioned replace 2nd too as it is prone to play up.

Thanks, Steve.