Got my 4 door brake conversion done today on my 2 door tracker, what an improvement in braking!!   I put the rotors and calipers in last week with the 2 door master cylinder, it worked but the pedal was soft.  So today I got the 4 door master cylinder, some new brake line and a bender and went to town.  The only pain was bleeding the system, but once I got that done, works great!  Thanks for the threads that guided me through this project.... Now for the lift kit!

Cool, glad to hear it worked for you. For another BIG improvement in braking power try going with discs in the back too. Really makes 'em stop hard!