Re: sonoma gt brakes
http://www.s-seriesforum.com/forum/showthread.php?t=71837
There is a guy on SSF names Ed Miller that is making brackets for the 2wd trucks, he has a kit to install C5 13' brakes onto both the stock spindle and the 2100 drop spindle and also the 98+ stock and dropped spindle, basically you buy the caliper adaptor brackets and hubs for around 200 bucks and then supply your own C5 rotors and calipers, he also has a kit for the 12" f-body disk on a stock opr dropped spindle, and i believe he recently got the Z51 13.5" and ZO6 14" rotors to work with either the LS1 f-body or a C5 or C6 dual piston caliper. And i know he is working on getting the 12" f-body disk to fit the 98+ stock and dropped spindle, but there isnt much room because they are not that much bigger than the stock brakes.
For those 19" wheels, id go with the Z51 or even the ZO6 brakes and do the LS1 12" rear disk swap thats a direct bolt on. Probably best bang for the buck as far as brakes go. Much better than Bear, which uses C4 13" HD brakes, which are the same as 94-98 Cobra.