HI all,

Please be gentle, I'm a virgin here. Just picked up my new 06 LBZ Ext Cab 2500HD Long Bed on Friday and love it so far. I want to move my Michelin 265/75R16 s from my 97 Dodge as they are nearly new and I trust them for the load I pull. The problem is that Costco (who installed them) won't move them to the Chevy because that tire size isn't listed in their tire size application for the truck. They said if I could find something printed from Chevy indicating that was a valid tire size for the truck they would do it (although I would lose the Costco warrantee because it wasn't the original vehicle). Does any of you have any ideas where I could find such documentation or maybe suggestions of a tire dealer here in the San Fernando Valley that would not be so squeemish about making the swap. Thanks in advance.

:help:

that size is standard on the single rear wheel 3500, which is essentially the same truck you have with an extra spring in the back. grab a 2006 brochure from your dealer, find the tire sizes listed and show it to them.

barring that, find another tire changing machine and do it there. if the warranty won't transfer (which is a crock of b.s. anyway) why give them your money anyway?

matt

Thanks Matt. Worth a try.

Go somewhere else. I've been denied service from better places.

Thanks Antnee I will probably have to do that.

Screw Costco.... Someone else a while back wrote of such a problem.... Go to your friendly neighborhood tire dealer, personally, I find that the older the promotional items and brochures in the "waiting" room the better the service you will receive, especially if the guy comes in from the garage in his uniform that may have been washed last in 1998.....

Good idea. I'm going out this morning to just such a place. Thanks for the advice.

Go to Discount tire. They will swap rebalance and for a liltte more, sell you the warrenty.

Screw Costco.... Someone else a while back wrote of such a problem.... Go to your friendly neighborhood tire dealer, personally, I find that the older the promotional items and brochures in the "waiting" room the better the service you will receive, especially if the guy comes in from the garage in his uniform that may have been washed last in 1998.....


Amen! I shopped the local Costco for tires and they wouldn't put anything but load range "E" tires that were 245/75/16s on my truck.

Thanks to all that repied. I got it done this morning at Ram Tire in Van Nuys. Seems like a good place to go if you need tires in the SFV. Thanks again.

that size is standard on the single rear wheel 3500, which is essentially the same truck you have with an extra spring in the back. grab a 2006 brochure from your dealer, find the tire sizes listed and show it to them.

barring that, find another tire changing machine and do it there. if the warranty won't transfer (which is a crock of b.s. anyway) why give them your money anyway?

matt

I own a 3500 and previously owned a 2500 - the 3500 has a 7" width rim whereas the 2500 has a 6.5" rim stock. According to michelin, the rim size required for the 265 is 7".

You will have additional rolling resistance by mounting a larger tire on the stock 2500 rims (and less fuel mileage).

And "Don't shoot me, I am just the messenger"! :)

jeff

I own a 3500 and previously owned a 2500 - the 3500 has a 7" width rim whereas the 2500 has a 6.5" rim stock. According to michelin, the rim size required for the 265 is 7".

You will have additional rolling resistance by mounting a larger tire on the stock 2500 rims (and less fuel mileage).

And "Don't shoot me, I am just the messenger"! :)

jeff

The increase in rolling distance will be offset by the lower overall ratio you end with on the highway. Of course if you from a stock 245 to a 265 mudder you won't see any gains anywhere, but a 265 such as the one he's talking about will help him on the highway and hurt him a little in stop and go. It's the size GM should have put on to begin with, or, better yet, 285's.

I had a similar tire size issue with Costco. However in thier defence they tighten lugs with a torque wrench and then another tech checks the tightness with a second torque wrench. Also tires are nitrogen filled at installation and rotated and balanced every 7000 miles for free. They do not flex on thier policy of installing approved tire sizes only. They are probably one of the best tire shops in our area, quality installation wise.

I had a similar tire size issue with Costco. However in thier defence they tighten lugs with a torque wrench and then another tech checks the tightness with a second torque wrench. Also tires are nitrogen filled at installation and rotated and balanced every 7000 miles for free. They do not flex on thier policy of installing approved tire sizes only. They are probably one of the best tire shops in our area, quality installation wise.

Sounds like a Wal-Mart-like establishment. I guess not. :confused:

Also tires are nitrogen filled at installation and rotated and balanced every 7000 miles for free.

Why fill the tires with nitrogen? It's a pick up not a race car. Also I don't keep nitrogen in my shop at the house - what do you do if you need to bump up pressure in your tire? Go to Costco & pay them to put nitrogen in your tires? That seems a little extreme for street use.

The increase in rolling distance will be offset by the lower overall ratio you end with on the highway. Of course if you from a stock 245 to a 265 mudder you won't see any gains anywhere, but a 265 such as the one he's talking about will help him on the highway and hurt him a little in stop and go. It's the size GM should have put on to begin with, or, better yet, 285's.

I don't think you are taking into account you are putting those larger tires on a rim that is too narrow to accomodate them. When you mount a tire designed for a 7" wide rim on a 6.5" wide rim it makes it so that the tire doesn't have a "flat profile"; It has a crown which results in greater deflection of the tire as it rotates. This yields greater rolling resistance, heat and wear on the tire (than it would have with a properly sized rim). A 265 is fine on a rim that is the right size - and my 3500 srw has 265s along with 7" wide steel rims. Put 285s on the stock rims (2500hd) and your mileage will take a big hit.

jeff

Why fill the tires with nitrogen? It's a pick up not a race car. Also I don't keep nitrogen in my shop at the house - what do you do if you need to bump up pressure in your tire? Go to Costco & pay them to put nitrogen in your tires? That seems a little extreme for street use.


The nitrogen will not "leak off" as bad as air and almost requires no adjustments. The nitrogen is also much more stable temperature wise and will not fluctuate as much as air due to weather changes.

I guess this helps a place like Costco keep the tires at an optimum pressure for the "typical Joe" consumer that never checks their own tires.

All true. Nitrogen pressure doesn't change as ambient temperature changes, where as air pressure will change 1 psi for each 10 degrees of temperature change. There is no charge for tire pressure adjustment at Costco.