I bought mine from Laurel Mountain Mustang. They appeared to be spread about 3/16" too wide at the ends, so I had a set made here locally. When I tried the local ones, they too, were a bit wide. Disappointed, I mentioned this to a friend of mine who also happens to be a Heavy Equipment Mechanic. He grabbed the U-bolt in his hand and squeezed it a bit and the bolts fit into the plate... He told me to "grow up" There are several you can buy from them, I elected NOT to buy the "concours" ones, and instead bought the $17.95 set of four... 2154A65 1967-1973 MUSTANG U BOLTS, SET OF 4 $17.95
bring the gt to my house Ill give you a set from a parts car I have Im assuming this is what theyre for right? already swapping from 4 to 5 lug?
I got a set from ESPO and the bolts/threads were smaller in diameter than stock so I never used them.