Stripped thread on gearbox - What's the best way to fix?
 

When I took of the t/c I found this:

[img=http://imageshack.us/thumbnmail.png]

I'm thinking about machining a larger hole and putting a brass insert in there. What you guys think?

:helpme:

Helicoil it.

best way is always the most expensive.
timesert is far better than helicoil but both will work.
so will using longer bolt and a nut (cheapest fix)
or tapping for american fine thread. dont know what works for 12mm upgrade but stripped 10mm can be tapped with 7/16-20 and works perfectly. drawback is you now have an amercan bolt on your car. and you have to enlarge eye as well.