[TR] TR4A vs. TR6 FRame

[GHaynesTR4 at aol.com]

Bud,
There is one more small difference in the frames, but it will not affect 
your engine swap.   
The TR6 frame has two brackets welded to the top of the rear spring tower, 
and these accept bolts to the body shelf behind the seats.   I ordered these 
for my new RATCO TR4A frame and had to locate and drill two holes in the 
shelf.   Not too accessable, so I removed the rear wheels and drilled upwards 
using a 1/8" drill in the Dremel tool.   Then opened the holes to 3/8" from 
the top.   This extra mounting would seem to eliminate potential cracks in 
the wheel well, which my body had on each side.   I need to weld them up now.
I also asked for the (more forward)   rack mount position, as it makes the 
tie rods more nearly straight out from the rack to tie rod ends.
George