Perhaps it is a side effect of our limited slip diffs?

 

I highly doubt thers anything wrong with the rear of your truck. Its more likely a softer tire compound, the softer compound they are, the quicker they wear out. Keep in mind, your truck is massive/very heavy, it takes a lot to get that mass rolling from a dead start, hence, a lot more rear tire wear. Look at treadwear on the tire spec`s, you can learn a lot from just that alone. Keep an eye on your tire pressure`s too, that usually wipes out a tire real quick if not set right.

 

OK and thanks for the suggestions. Early on tire pressure was one thing we zero'ed in on but it’s all good there. I think you may be correct about them being too soft even though the tire place disagrees. At 4780lbs (weighed on scales with empty tank) I am not too much heavier than a Challenger am I? Those with much heavier Quad cabs don't seem to be experiencing this, that I have heard of. Tire dealer is at a loss as to why their 50K Kumhos are only lasting 15K but they keep replacing them P/R One thing I am noticing, when making turns and windows are down, even when I lightly load the gas pedal the tires do a slipping/chirping routine. I wonder if that’s where most of the wear is coming from as I do mostly city driving.

 

I suspect this but cannot verify. Is anyone else experiencing premature rear tire wear with the LSD?

 

I've had my 2009 since January of 09. First set of tires went ~60,000 miles, this new set (same os original) has gone 40,000 and now is in need of changing. I've never heard of a set of truck tires only going 10-15K unless you were constantly flooring it everywhere and spinning always. Mines the 3.92 with LSD.

 

I had the Revo II on my 09. treadwear no better than the GY's. They grabbed better, slightly noiser and a little less MPG's with them.

I am going with these once my 12 needs new rubber. They are resonably priced, very reaosnable. Discount Tire in my area sells them for $122, not sure if that is mounting or not, do not usually deal with them, $140 at worst I would think mounted. MPG should not be affected as weight is almost the same as the GY and the tread pattern is not overly aggressive. The GY tires were pretty much selected as they could cover the tow rating and gave the best MPG. Hard for a manufacturer to put on a tire that would require them to reduce their MPG ratings.

http://us.coopertire.com/Tires/Sport...-H-T-PLUS.aspx

I will get about 40K out of my stock tires, this is based on my 09 experience and tread left on my 12 with 23K on them.

 

I was at the tire shop 2 days ago (Americas Tire). It had been about 6000 miles since the last rotation. Both front tires measured 8/32, the passenger rear was at 6/32 and the drivers rear at 7/32. I asked the tire guy (nice young kid) about the difference. He said that the rears wear out faster in RWD vehicles, so just keep rotating them. If you don't rotate the rear wheels out, they will wear out faster.

 

"load the gas pedal the tires do a slipping/chirping routine"
Thats were your tread is going brother...!


"not too much heavier than a Challenger"
Totally a lot different than your truck (some factors: weight distribution & gearing)

 

Pedro, you got an open gear rear diff...?

 

Dunno about that. Mine have 40K on them and as of yesterday have 5/32 on 3 of them and 4/32 on the right rear. Not that much difference in wear unless you are spinning them a lot. (I never rotate my tires)