My frame has a few holes, is thin and has some areas of delamination. I am thinking it is easier to swap frames than to box and patch my current frame. I have a 84 BJ42 and have located a frame from a 80 FJ40. I have read through all of the H55 swap threads into FJ's and am thinking this should be a fairly straight forward swap. I know I will have to change the engine mounts, will I have to make any modifications to my transmission mounts/cross-member? Or can I simply take it out of the BJ and install it in the FJ frame? Is there anything else that is going to complicate things?