Gentlemen thanks for the input.
I must say I am now in a quandry. Initially it seemed a no brainer to add a crossmember... perhaps not.
As Scott stated adding the third crossmember could result in high loads on the components. From an engineering perspective 2 crossmembers are better than 3.
And Jerry has first hand experience with an unsupported 4-speed Muncie in a dirt track car... I would say that qualifies as severe duty!
It is hard to argue with success. But then again it may just be dumb luck that the tranny ears haven't snapped off!
How about adding a tranny crossmemmber but using studs and locking nuts on the crossmember to tranny mount. That way it could be left loose enough to not bind, but would prevent the tranny from falling out in the event there was a failure?
What do you think?
Did the trucks equipped with the automatic transmissions have the engine, the bellhousing and the transmission crossmember ?
John
Last edited by Hot Rod John; 09/08/2008 3:03 PM.