Hello,
I have a 1968 Jeep Kaiser. The front end is a Dana 44 6 lug 1/2 ton. The guy says it comes from a 75' Chevy. I need to replace the power brake booster and Master cylinder. Question is I have no idea on whether it is a jb5/jb7... ?? Does it matter which one I buy? Is it going to make a difference that could be really harmful to other people as I drive down the road? (Don't want to hurt others). Also would it matter if I got a 3/4 ton verse the 1/2 ton model. Thanks for your help in advanced. The people here have no idea. Any info would help.

Thanks Dave