My 68 has 4 piston calipers and one just sprung a leak, I'd like to have these originals rebuilt with SS sleeves. SSBC did my last set, but I think they're out of business. Any ideas as to who to use? Thanks!

Bought these through Firebird Central, new castings with SS cylinders, correct casting #'s & markings.

Smart to keep your original castings with such an original car. I have never personally used these guys but a friend has https://whitepost.com/brake-sleeving-rebuilding-services/ Since late 60's Vettes used these also you may want to peruse some Vette sites to get some up to date 1st hand experience. Good luck.

Your new calipers look really good, and I may end up with a pair, but I'm going to try the link BB posted first. Thanks for the replies!

I've been doing some research, looks like Whitepost restorations, Calipersonline and lonestar caliper are the most popular for rebuilding your originals. I also read that the 67-68 firebirds used a 2 1/16 bore compared to the 67 -68 camaro that had 2" bore, Heart Beat City sells both or will rebuild your originals also.

Mine are Lonestar

They look really good, honestly I can't tell an original from a repro. Have you installed them yet?

Update, I see where SSBC is back in business, I'll call them today and see if they rebuild GM cores.