I just got my dynatrac kit delivered today, and I can't wait to install it. I am just running 35s and have taken measures to minimize weight (aluminum skids). So just the jeep itself stops fine with factory brakes. But I've got a 1400 lb camping trailer that has to stop too. I think this kit will do it. Also, a local jeep club guy told me the JK "Mating call" disappears with the dynatrac brakes. You know, that sound your brakes make when you're on a ledge and trying to creep down it...rrrrrrrrrrrr, rrrrrrrrruuuuuuuhhhhhh, rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrruuuuuuuuuuuuuuu uuuuuuuuhhhhhhhhhhh

 

Ha now that you say that mine stopped also after redoing the axle

 

What are the options for improved braking with 15 inch rims?

 

Buy 17inch rims or smaller tires.

 

I'll take that as Zero options

 

You're not going to find a larger rotor or caliper that will fit with a 15

 

you could always look into a better rotor of the same diameter and go with EBC brake pads. I've heard they make a big difference depending on what "color" you go with.

 

I used these on my last jeep, 37s, a lot of steel skids, and a trailer. They were great. Idk if they fit 15s call and ask:
http://jeep.rebeloffroad.com/product-p/roe-jk-bkc.htm

Not really buying the 40% improvement claim though. There is an improvement, but 40% is a high guess.

 

Thanks for this. I may look into this. Finally a none wise ass response

 

EBC is more geared towards racing applications. Their yellow stuff pads are the best option for a DD, but they don't improve braking power much, just brake fade. The other ones grip more, but take longer to warm up and wear the pad and rotor out faster.