Oldmanmopar heres the other jig I made that uses K frame bolts. This is heavy gage 2" tube. Great for checking squareness and to bolt a K frame into for seam welding it on the work bench. I originally made this for lopping off the 67-72 slant sux RH mount and for installing a V8 RH mount. Also you can see the modification of the front of the LH mount to 68 up V8 Heres pix.