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-   -   09-12 rear rotors same as earlier? (http://www.ramforumz.com/showthread.php?t=119822)

UNBROKEN 08-20-2012 07:09 PM

09-12 rear rotors same as earlier?
 
Doing a search for rear rotors...just need to know if the Gen4 brakes are specific to those years or if they are carry overs from previous years.

moparornocar72 08-21-2012 09:19 AM

I'm pretty sure they are gen4 specific. I know the fronts are for a fact so i'm assuming the rears are as well. Good luck!

snrusnak 08-21-2012 10:16 AM

Try looking up part numbers from an older model and newer to compare.

I'd GUESS that they are the same. Same axle and all, why would it change?

hemirae 03-28-2013 05:25 PM

I have noted that after market replacement for rear rotors are larger in diameter than the front. Is this OK considering that the rear calipers are smaller as compared to the front?

CdnoilRAM 03-28-2013 09:16 PM

Quote:

Originally Posted by hemirae (Post 1052704)
I have noted that after market replacement for rear rotors are larger in diameter than the front. Is this OK considering that the rear calipers are smaller as compared to the front?

The rear rotors are about 1/2" larger in diameter than the fronts, the size of the caliper is just different since these trucks are front brake biased. I picked up the EBC pads and rotors for my '09, and they're showing the same parts number for all '09-'10 as the same ones for my '07, but not showing anything for the '11+ in the same rotor type, so I don't know if there's a difference in the later 4th gens or not, but I can't see there being one since the hubs and axles are the same.

snrusnak 03-29-2013 08:57 AM

Doesn't really matter(although it is odd). The size of the brake pad/caliper is what matters. You could have a rotor with a diameter of 10,000 feet and if you only put a pad/caliper on it that has a contact area of 8 square inches(say that's stock) then it will provide the same braking force as stock. Although it would cool significantly better/faster.


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