New rear tires every 2k miles please help

Got alignment in rear at a .16 total when got it aligned havent checked it since.. as far as tires i went thru a set of dws and a set of michelin sports as plus... even tho my chamber is over factory specs its not chamber wear since tires wear perfectly even... there is a slight signs of chamber wear but still doesnt explain the rest of the tire wearing sooo fast

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Originally Posted by andrey.kvotchenko

So replaced my rtabs got car aligned went thru 2 sets of rear tires since maybe a total of 6k miles??? Any other ideas

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Wearing that quickly means something is wrong.

If it was me, I'd return the car to what it should be and go from there.

That is, unless you're drifting, burning out at every light, tracking.

It really does sound like a serious alignment issue, though you didn't say how your tires are wearing. Given that you've reengineered your rear end, it's hard to know what the proper alignment specs would be, but it sounds like something is obviously off. Are you using door jamb tire pressures?

Anyway, photo of tire wear maybe? Maybe photo of all the suspension components back there? Have you had your subframe inspected?

great topic I am about to do coil overs and bushing ,hope I don't have to go through tires like you

OP how is your front? reason im asking is you might be creating a drag with the rear if your front is is off and pulling to a side.

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Tire wear is even all the way across.... like i said earlier a tiny bit off edge wear but not enough to account for the damage.....i do not cross/drag nor burn my tires i do drive aggressive but 90% of my driving is highway!!! Thought bout replacing all the bushings in the rear since the car has 134k on it but suspension is as tight and the car drives just as good as it did when i bought it... bought the car with 60k on it and the first tire replacement i did was at 95k which i think is fair for my driving... after that i lowered it and had problems ever since

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Your FCAB's and RTAB's are blown out. Your shocks and struts are likely toast as well. All the alignment it the world won't fix that. You need parts. Those are the parts to fix it.

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New springs new rtabs just replacrd both less than 6months ago havent done shocks

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Was tired of buying new tires all the time too. Went with Nexen on the front. Something like 500 tread wear. Still had to put some sticky Pirellis on the back. But fronts are lasting much longer.

Fronts not a problem rears are

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RTABs - rear trailing arm bushings. I'd bet money that is the issue. They are a 'comsumable' item on many BMWs, cheap for poly bushings - labor isn't the cheapest and you'll need a new alignment after the installation. My rears wear showing heavy signs of wear at the 5,000 mile mark and led me to start checking into why. RTABs were the culprit.

Guys ive replaced the rtabs

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When you lowered your car did you just purchase springs and leave the factory shocks or did you get a coilover kit?

Springs

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Oe shocks

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Did you replace the OE shocks when you installed the new springs or are the the ones that were originally on the car?

They were supposedly replaced so when i lowered the vehicle they only suppose to have had bout 15k on em but they are oem

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Hmmm. Well I was leaning towards blown rear dampers which would have a hellacious effect on tire wear but hard to tell if they are good or not without having the vehicle. New dampers aren't terribly expensive but I'd hate to see you replace them without verifying the current dampers condition. I'd say work on verifying the existing rear damper condition - there are a handful of race shops around our area that have shock dyno's. I'd imagine being in NASCAR country that there would be some shops in your neck of the woods that would have one..?

is there uneven wear? where is the tire wearing out? what are your driving habits, hard accel, hard decel? dragging? wasting gas (burn outs)?

Originally Posted by sakumaxp

is there uneven wear? where is the tire wearing out? what are your driving habits, hard accel, hard decel? dragging? wasting gas (burn outs)?

He said earlier no burnouts, no drag racing - 90% highway miles. The tire wear from left to right side is a legit question for sure though.

Originally Posted by scca_ziptie

He said earlier no burnouts, no drag racing - 90% highway miles. The tire wear from left to right side is a legit question for sure though.

ahh sorry, just quickly skimmed through the replies i guess i overlooked the answer to my own question. hmmm and seeing you replaced most of your suspension components, this is weird... i would just save up and do a whole complete overhaul, sell the springs and get a good solid set of coilovers, and get another alignment after install