I was able to stretch a tape measure 1/2 way around the rotor, got a measurement of 510mm, so that times 2 gave a circumference of 1020mm divided by Pii (3.142) gave a diameter of 324 mm. The tape rested on the fins of the rotor, and the outside rim is slightly above the fins, so I am pretty sure I have the 332mm rotors. So that is what I ordered. All the online parts stores are very unclear about which size rotors to order, I did go to the dealer and the parts guy took the VIN number and gave me the part number of the MOPAR rotor which coincided with the 332 mm size. Of course, they did not have them in stock, plus I didn't want to pay double the price at the dealership.
What size front rotors
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I did the Dynotrac big rotor kit which allows you to use the factory calibers. You don't even need to bleed the brakes after the install. They are really amazing. 13.5" front rotors and 14" rear. The stopping is hugely improved on my 35" tires.
![Automotive tire Font Audio equipment Automotive wheel system Circle]()
I think some outfits make improved calibers for the stock JK brake system now as well. That would make the kit even better. I like the idea of improved pads such as Black Magic pads also.
I think some outfits make improved calibers for the stock JK brake system now as well. That would make the kit even better. I like the idea of improved pads such as Black Magic pads also.
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