Adjustable brake push rod?

maybe it is the same for a 65. i bet you can call brewers and atleast ask.

http://www.brewersperformance.com/proddetail.asp?prod=BPR-A




Reconditioned brake pedal to master cylinder pushrod, for manual brake applications, includes pushrod, nut and bolt with new o-ring, and locking grommet for master cylinder. Fits all 1963-76 A-body applications, measures 6 1/2" overall length. As available.