about how muck should I be paying for a complete system,lines booster, pump,and master cyl.also I did search and the wrecker I called said he had both systems 73-80 and 81-87.whats the diff both systems are off chev.what would you say is the best one for my CJ

I would think the 81 and up would use o-rings, applies to your Jeep also. Parts Mike and 4xDoctor also sell bolt on kits.

There's info on my site, check the sig below