Would someone be able to tell me what the numbers are on the bottom of a stock master cylinder? I have an 07 if it makes a difference. I've been trying to fix a soft brake issue. I bought the Jeep with an aftermarket Teraflex big brake kit. (Front calipers/rotors) After researching, it was suggested that I get their big bore master cylinder to help solve the issue. I have the aftermarket one in hand, but before I replace the stock one, I want to be sure it doesn't already have the aftermarket one in it. The one that's in there currently, has the same number of "2C2 400" on it. Those are located under the large part of the cylinder. The numbers that are different, are right under the most forward (as in closest to the front of the Jeep) fluid outlet line. The one in the Jeep already is "38". The aftermarket one I bought has "5.15".
I hope I'm explaining this well enough. I would greatly appreciate your help here, so I can decide to go ahead and install it, or send it back. Thanks in advance!