The bracket is a piece of aluminum. I had laying around. No idea where it came from. It was originally an "L" channel. I cut the 1 side off of it to make it a flat piece. I don't remember the thickness right off hand. Would have to go out and measure it if needed.
A small block mopar upper alternator bracket has the same exact holes as the fork for caliper mounting. I used that as a template for the holes to mount to the fork. After that I simply put the caliper in the proper placement and then drilled and tapped them and mounted it up.
What is not seen in the picture, is that with it being an aluminum adapter I did safety wire all 4 bolts.
Had I known the 150 was going to fit as well as it does, I might have shot the moon and went with a 160 Dunlop q3.
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