Re: Finally built it but one problem
what i did was replace the junk bolts for some that would let me really torque em down with out snapping.
then take your 2 pieces that curve, and hammer em straightish. doing this then tightening it down will force the metal to contour to your frame, another thing is take a can of beans or olives or corn, dispose of the insides in what ever way you see fit, and use the ribbed section of the can to make shims, this will allow the idler to catch something much better, mine was literally unmoved by a hammer strike when i set it up.
like i said though i'd recommend buying a replacement with a 4 bolt set up, pressure is much more evenly placed with one of those set ups.