The 69 assembly manual, the section covering the std. and HD Rear Axle Brake Pipes, page 65, calls out this bracket as P/N-3954381. Below is a picture for reference. It also shows another clip P/N-3956700 securing the RH pipe at the first cover bolt just past the 12:00 position. As attached a pic. These two items were original on my 69Z. Bracket 3954381 was not painted, rusty and pitted. I ordered a repro #BR-8 from Rick's 1st Generatation, now priced at $15.99.
You may also need the bracket P/N-3953281, that holds the flex hose to the underside of the body, at the point where the flex hose interfaces with the steel line hose. Ref. Rick's 1st Gen. #BR-35, $25.99.
Its been noted that Rick's 1st Gen has changed hands and prices have taken quite a jump. You can visit:
www.rickscamaros.com, or contact them at 800-359-7717.
JohnZ....are these bracket not common among all 69's?