Looks good the only difference is the length of the thread area is 3/4 "on the HD bolt and the HD bolt uses a fine thread. I just measured my u bol...

no just u bolts 1.5 " inside diameterI could not find any at graingers or other suppliers that would fit the frame and the block.so I paid H-D pr...

Check your local HD parts man I got two just last month they can order from the factory $36.05 each