Just had a gearbox rebuild on our 4wd cosworth track car and its done about 350 miles now, do i need to change the oil like you would an engine after running in? doing a track day at oulton park friday and last track day we did was there and the car lasted till lunchtime and then the gearbox gave in, hoping the tracks not cursed this time around! any help would be appritiated.

 

What power are you running? I think that will be why the gearbox broke rather than a cursed track....

 

Just running stage 3, but quaife front diff and R888's, i know a std gearbox isnt man enough but for the amount of track days we do its just not worth getting a better one.

 

Gearbox dying after one trackday?

Christ who rebuilt it? John Wayne?