would this be a good way to stiffn the car by adding sub frames only in a x-frame config?

 

well i would do the regular straight back way and add the x to it. this will make it even stronger. many race cars with tubular frames do this method.

 

couldnt weld them.. or you would never get the tranny unless the motor came with it.

 

Why not just do something like in this thread..

https://www.thirdgen.org/techbb2/sho...hreadid=167803


I think that would get you a similiar Triangle effect but you wouldn't have to worry about blocking trans removal.

Throw in a tough heavy duty Spohn transmission crossmember (like the ones found on his tq arms) and call it done.