A it normal to have replaced my rear disks and pads twice in 80,000 kms.
I own a JKUR and it seams to be a very short life span for brakes when other vehicles I've owned have lasted well over 80,000km.
Does anyone else have this issue or is my jeep a lemon for brakes and have an issue somewhere?

 

depends, how do you drive it? are you going as fast and hard as you can and breaking heavily, or barely touching the brakes at all?

pads should wear out, thats why they are there, disks only wear out if the pads are too hard and you slam on the breaks too much.

 

It is not uncommon for the rear brakes to wear out fast. Lots of threads on this to read through, with many people indicating it has to do with the computer controlled abs/esp/whatever systems playing nanny and applying the rear brakes.

 

The traction control uses the rear brakes to straighten you out if you are driving crazy on gravel or snow/ice. Mine went out before the fronts also.

 

My 2012 and my friends 2010 both wear out back brakes first.

 

Lots of people think it's the traction control.
The brakes on later vehicles are biased to the rear.
How often does traction control kick in compared to normal braking? Not often.
And when it does kick in, how much energy is converted compared to normal braking? Very little.

Many late model front wheel drive cars wear out the rear brakes faster than the front brakes; even those without stability control.

 

and dont most vehicles apply brakres more to the rear then the front with 4 disc setups? like 60% rear 40 % front to prevent spinning out when you brake hard. its like a bike, if you apply too much front break and not enough rear, you either have the back come around on you, or worse yet you have the front dip and the rear want to flip over hehe, not saying a jeep would do that, but it would want to get all swirvy if the front brakes were applied as hard or harder then the rear ild bet. makes sense that the rear pads would wear faster then the front in this scenario.

 

MY understanding is that our jeeps have more bias of brake power to the rear wheels to limit nose diving when stopping. As has been stated before, there are quite a few threads on here related to this issue.

 

If it is 40% front and 60% rear why have I done 2 sets in the rear and the front set are pretty well as good as new?

Braking is not a thing I do heavily unless I have to and the esp/bas/traction control light has only come on twice when I've been driving in 3 years.

I guess 3 years isn't too bad unless the other cars I drive get 6 years between brake changes.

 

Yes it is normal. If you drive on dirt roads a lot or do any off roading this will be accelerated due to the BLD function. I use my BLD a lot and at 20k miles I will be replacing the pads. In my experience, replacing the pads before they go too far has made the rotors last longer. I have considered a mechanical LSD for the rear to negate this a little.