55.2-59 Ol' Blue

[8man]

Yes sir. They are going to do all that.

This will be my first engine build, and I was talked into it by a restoration shop manager who volunteered his time to oversee my worki and what I'm doing. So, maybe I won't screw it up!

[8man]

I have a ZR2 rear axle, and I've started rebuilding it. The lugs on the rear don't match the ones on the front hubs I got from TCI. After talking to TCI and having the axles out of the tubes, I decided TCI was right it was going to be easier to replace the rear metric lug bolts with 7/16 x 20. I measured the knurl and got some from Summit that are the right size. I have measured the knurl for size, and it is .557", so my measurement agreed with Dorman.

Now, I need to drill the hubs out, but I'm not sure what size drill bit to use, I'm thinking 15/32, although a 14mm might work. I need it to be tight enough to hold the lug bolts tight enough, so they don't move.

I talked to an axle shop today and they said the real problem was centering the new hole. I thought I could just use a drill press, and the right size drill bit would follow the original hole and be centered. Am I missing something?

Thanks.