Would anyone know the exact dimensions or know where they would be available for the 4 front mounting bolts on the bolster? I checked my T&I and service manuals but nothing in there. The top is 6" center to center and the bottoms are 4". Just looking for something exact before I start milling and drilling a piece of 1/2" cold rolled for a mounting plate and eye attachment for pulling. If not available, I guess I'll just tap out a template on cardboard and hope for the best.