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Chevy 5500 2009 rear end has blowed out 4 new tires less than 1000 miles on them 2 different brands of tires they swell up in center of tires sling off tread then blow out Not in the same spot all across the back left inside to right outside daul then back across rt inside to lft outside for example have replaced carrier bearings due to exssive vibration any ideas this is a rollback wrecker and loaded with 1 ton trucks when it happens thank you for any and all suggestions

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It appears that you are using retreads on the tyres for the tread to throw off. This is false economy as the tread is only held on with glue. Next check the rear axle alignment as if the axle is not square to the chassis the tyres are running at an angel to the drive. Check for loose /broken centre bolts and spring problems. Tyres have to be all the same circumferential distance because different size tyre will fight each other on the road because of the differences that each tyre has to travel for the same revolutions

Posted on Nov 12, 2014


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Posted on Jan 02, 2017

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SOURCE: Roaring Noise

check the mounts for the shock absorbers

Posted on Jun 01, 2008

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SOURCE: ford super duty vibration/shake

The carrier bearing should not move at all. It is mounted in rubber to give a little. But, it should not move freely. If this is the case then something has gone bad. The carrier bearing would cause this vibration as it spins if it is loose.

Posted on Mar 16, 2009

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SOURCE: I love the car and it drives great, however, my

u still need to take your car to a allighment, most likely your front tie rods were adjusted wrong and both front wheels go inside or they both go outside, and in that case it will never pull to neither side but it will eat your tires like crazy let the allighment test show u that they are off it original measurements, i will it will solve your problem

Posted on Jan 12, 2010

Testimonial: "thats what it was --thanks"

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SOURCE: I have a 1986 Chevy Astro-Lite R.V.. The right

Best thing you can do is bring your axle with you to a scrapyard and match it up. If the bearing surface on the axle you have is no good bit the axle is still in reasonably decent shape, there is a company that makes an off-set bearing that will run on a different area. I can't remember who makes it but any decent parts house will know.

Posted on Jun 22, 2010

Testimonial: "Great idea but I think the shaft may be too far gone.. Thanks Dan..."

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What are the tyre pressure of a ford focus 1.6 automatic 2014

Coming from someone who has worked for Chevy,Ford,and Chrysler dealerships we had to gauge the tires by what the sticker said on the door jam at the driver side..I disagree with it...It is always best to gauge tires with the outside temp because cold weather and hot weather make a huge difference...NASCAR racing can drop a tire pressure on one tire and raise it on another for better traction on the constant left hand turns...Just a 1/2 of a pound can make a huge difference..Tires tend to swell in hot weather and on long trips..another reason it normally says to gauge a tire while it is cold which means been sitting still overnight..It doesn't mean cold weather...However tires won't swell in cold weather...I like running 40 psi in tires if it says 32 or 35....this will give you a good flat even tire wear...I have always added 5 pound to whatever it told me to gauge it at...If a tire wears out on both edges it indicates low air ..,also tire alignment can wear one side of the tire....If it wears in the center it means too much air...It is hard to keep them perfect because of rotations..,weather ,and certain terrain but it can be done by checking them every month....Some tires have different pressures written on them that is different than the door sticker...To answer your question ...Add 5 pounds to the door sticker...,your tires will last longer..They won't last as long with door sticker pressures which will give dealers more tire business...Another thing dealers do is put nitrous in tires instead of air which is supposed to keep air from swelling and changing in the summer and winter...This is good..It isn't Nitro that explodes.....Always tell them to gauge them with your choice of tire pressure....

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I had two used tires put on the front of my 2000olds bravada and now the service awd light is on,did they mess something up.

If the tire diameter is different from the rear

Used tires will be worn & smaller

If that is AWD--- it won't work,need 4 tires the same

Same brand,same tread,same amount of wear (dia)

They also could have caused a problem with sloppy work

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1 Answer

1996 zj . i replaced the entire front end, less the gesrbox. also replaced tires . the right side bearing hub keeps going bad. i replaced it 7 times in 2 years , all parts are moog. what can it be ?

old post but a great question.
over sized tires and and wheels?
1: incorrect assembly, (installation) tops list , did you read every step in the FSM? skip Step 3? that 175 foot /lbs rule?
bingo , huh?

2: gross alignment issues, but the tires tread will tell you, hey buddy
it's bad.
3: use Timken brand, (moog is great too)

my wild guess, is you never read the chapter 2, page, 10?
the hub bearing is preloaded. (crush bearings here)
suspension opt chapter. 2.
read the FSM
do not set the bearings in this hub like some utility or boat tailer hub.
its totally different technology, this bearing.
my guess is yours are loose. ; and the beat them selves to death.
Timken runs tests on this and shows them doing that in under 1000 miles. (done wrong, too tight or too loose , out of spec range)

these are crush bearings, that crush and the clearance goes to perfect like magic, and by DESIGN.

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I have gone thru 3 sets of good tires now. Tires lasting from 10-12k miles before they hit cords. This is after the dealer does an alignment to spec. Funny thing is I have never seen the alignment specs from the dealer, I only get "aligned to spec". My wear is on the inside of the tires just as described in the police bulletin. I have tried different brands each time and get the same result (wear to the cords in 6 months or less). The bulletin only applies to the police version becasue GM doesn't want the bill for the thousands of ordinary customers repairs. There are enough complaints of this exact thing on any Chevy site that you can find. We aren't all nimrods.

You may be a guru, but I think you don't know what you are talking about.


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How can the rear suspension be adjusted?

TOE-IN : 0±2 mm (0±0.08 in.)
note_icon.gif 1. The rear suspension lower arm mounting cam bolt should be turned an equal amount on both sides during adjustment. Right wheel : Clockwise direction : toe-in Left wheel : Clockwise direction : ton-out Maximum difference between LH and RH : 3mm 2. The cam bolt should be adjusted within a 90° range left or right from the center position. CAMBER Standard value : 0°±30´ Maximum difference between LH and RH : 3mm : 0±2 mm (0±0.08 in.) note_icon.gif 1. The rear suspension upper arm mounting cam bolt should be turned an equal amount on both sides during adjustment. 2. Install the left and right springs which have the same identification color. 3. The cam bolt should be adjusted within a 90° range left and right from the center position.e55b100.gif TIRE WEAR 1. Measure the tread depth of the tires. Tread depth of tire [Limit] : 1.6 mm (0.06 in.) 2. If the remaining tread depth is less than the limit, replace the tire. note_icon.gif When the tread depth of the tire is reduced to 1.6 mm (0.06 in.) or less, the wear indicators will appear.

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