I got the Aerospace AC 205 front brake kit for my 65. Before buying I e-mailed them and also talked to them on phone, asking if any spindle modifications were required. Both times I was told no. Putting the kit on today, the rather vague and generic instructions say to use the 5/8 bolt in the top hole of the spindle. For the bottom caliper bracket mounts 1/2 inch bolts are supplied with the kit, along with the bracket holes being drilled for 1/2 bolts. My 65 has 7/16 original bolts that go through the spindles and steering arms. The holes are not large enough for the 1/2 bolts. Has anyone done this install before and run into this? Looks like I might have to drill my spindles/ steering arms, which I'm guessing are some pretty hard stuff, for the larger bolts. It's Saturday and Aerospace is only open weekdays.