Renault gearbox Mounts

[Simon]

I would be grateful if somebody could give me advice about gearbox mounts.
Now I've got my gearbox lined up (see previous post) I'm making up mounts to support the rear end of the gearbox. I have heavy duty rubber mounts, and on top of these will be plates to support the box. The mounts will be braced, but my question is, is it enough to use the two mounting points (circled in pictures) each side of the gearbox, or should one (or both) of the mounts be supported by a third bolt?
Standard, mildly tuned 302, R21T LSD.
Thanks

Simon

 

[BruceA]

I would be using a third bolt on the mounting hole above those ones. Just using the two on their own on the horizontal may not hold the twisting of the box over time and could produce a failure of the bolt or casting. Remember also that the mounts also are there to stop the engine and gearbox coming through into the drivers compartment when you hit the brakes - so consider this when designing the mounts as well.

 

[Frank Catt]

Something like this

 

[Simon]

All sorted now thanks to Frank, see here....
http://www.gt40s.com/forum/feedback...6374-big-thank-you-frank-catt.html#post239197