The Triumph Dolomite Club - Discussion Forum

I used to rebuild Triumph gearboxes quite a lot back in the 80s when I had my GT6. I no longer do it. It's a relatively complex box for a beginner to attempt and the parts situation has gone from poor to dire, prices have gone through the roof and quality is in the basement. Even back in the day, I found it desirable to have a handfull or more of parts gearboxes as a pool for rebuilding.

There are a few "habitual" trouble spots on the box, chiefly the laygear bearings which affects ALL Triumph boxes, large and small, but they will run noisy like this for a good long time and fixing them is only a temporary cure. The one thing I WOULD check REALLY CAREFULLY is the clutch operating cross shaft as this is a pain to do at best and impossible with the box in the car. Otherwise the gearbox is fairly robust. Change the oil and test it driving properly. If it aint broke..........

Steve