Frankenstine Car, Need Brake Help Please

Cobain03

Active Member
Aug 27, 2003
996
0
36
Lexington, Ky
65 mustang where the only thing stock is the body.
using what i believe is a 96ish hydroboost unit and master cylinder. i modified my pedal to accept the plunger. running pbr 03 cobra front calipers and a jegs univerasal 9" rear disc kit. im getting a long very soft pedal. after hours of research, trial and error, multiple bleeding using vacuum and the old fashioned way, my last resort is thinking i need a BIGGER bore master cylinder.
im finding mixed information on what the stock (sn95 gt) hydroboost master is so i can decide what to go to. i've seen 15/16 as well as 1".
 
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