Sounds like the tires are underinflated to me. What pressure are you running them at? The Cummins is real heavy up front and you should probably be running those fronts are max pressure.

 

This dually is number 25, or is that 26 of the Ram diesels I have ran.

My first group of trucks, 90-93 I rotated the tires at every second service.

What I ran into was some vibrations until the tread wore off to match the other dual beside it. I also got a vibration in the front sometimes.

On the 2 gen Rams I rotated the first one, got just over 80K on the rubber.
I then decided not to rotate on the next couple of trucks...still got the 80K.

I always got at least 55K out of a set of tires. 55K was on the trucks that pulled the heaviest and most often. 80K was lighter loads.

For some reason the 3 gen with the badyears wore out before 35K. The fronts were a mess...cupped etc. The rears...they just got burned off...

Since I went to the TOYO HT...no more vibration from the front, very little road noise and the folks that installed them said they would rotate for me but did not like doing that because of the different wear characteristics of steering and drive tires. These tires are by far the best so far and beat my old favorite ...the Michelin LTX. When the snow flies I might change my opinion.

Scotty

 

I rotate my own. I only rotate the rears, I just swap the inners for the outers every oil change to keep from wearing the drive edge of the tread off.

 

4x4not; my thought also. I've been running at 65lbs - I think I'll try 75 (max is 80lbs) and see what happens.

 

Unfortunately your tonka toy dealer is dead wrong on this one,report him to DC and go to another dealer.It's too bad you didn't know about this sorry outfit,they don't deserve your business let alone your sale.It sounds like someone didn't want to get dirty on this job!

 

By the way,I have found that if you don't rotate every 10,000 mi or less that the front tires will start to cup,I rotate fronts to back as well.One of the trucks I look after started cupping on a new set of Toyo's after 9000mi's.The 2x4 seem to last a little longer than the 4x4 between rotations on the cupping issue.I'm sure others working these trucks can chime in on this one.

 

I don't rotate the tires on my Ram (partly because of the Alcoa's). Still the stock Michelins with just over 64k on them, run at 80psi year round. The tread is flat as a pancake, meaning I can put a straightedge on the tires and it makes contact all the way across. They're all showing 7/32 of tread left, so I'm undecided if I should push them through one more winter....probably will, then smoke 'em off in the spring

 

My dealer usually rotates mine . WalMart will also do it . WalMart and some tire shops offer free rotation if you bought the tires there . My dealer also offers free tires for life if I have all my service done there but they only give 4 free tires for a duallie . It's impossible for me to get back off the road to have every service there anyway . I have over 92,000 on mine , good for quite a bit more .

 

Could it be that someone swapped their worn tires for your new outers?

 

Too big a job??? I'd have to think about going to that dealer anymore. I use Discount tire a lot and when I took the truck to them to get them rotated, rebalanced and a slow leak fixed they didn't even charge me (after seeing my buying history on the computer) even though I didn't buy those tries there (on the truck when I bought it) since I run Ultra wheels I just rotate side to side straight across, not sure it does much good in the rear but I think it helps the fronts