Tire question

Tvickers · 08-13-2019, 10:01 AM

I bought Cooper tires over a year ago, long before I decided to buy a truck camper. Now I’m concerned they may not hold up under the camper load. The max tire pressure (per sidewall) is 44 PSI, max load 2403lbs. My camper weighs approximately 2000lbs. It’s a 2019 SS-1251. My truck is a 2004 Chevy 2500HD, extended cab.

Thanks for any and all advice!

Boris0119 · 08-13-2019, 10:12 AM

You may be correct about the weight support of those tires. Also and this is only personal experience. I have had 2 vehicles that had Cooper tires. One was a car and the other was an F250 Cooper Discoverer AT3. My experience with Cooper tires is not good. Both the sets of Cooper that I have owned had complete tread delamination and damaged the vehicles when they tread detached.

clr · 08-13-2019, 10:17 AM

It would greatly help all of us that may try and give you advise if you would provide the exact details of the tire you have installed on your truck.

Given the max air pressure I may assume this is a P type of tire for example. Also the tire has a model name from Cooper that may also help us.

sugarray40 · 08-13-2019, 10:46 AM

It is odd that a 2500 would have a P rated tire as that 44 psi pressure presumes. More information please.

Blackrock · 08-13-2019, 11:04 AM

Okay, back to basics. There is a sticker on the drivers side door pillar that gives all the information on tire sizing, air pressure and load rating plus the payload. Refer to this and maybe post a picture of it. This will help a lot.

clarkbre · 08-13-2019, 11:15 AM

Quote:

Originally Posted by sugarray40

It is odd that a 2500 would have a P rated tire as that 44 psi pressure presumes. More information please.

My thoughts exactly! If that truck has a 10,000 GVWR (most 3/4 tons do) then the 4 tires themselves would not support the allowed weight of the vehicle.

If this is the case, I'd be going back to the tire shop and demanding a prorated refund on the tires and getting E rated tires installed.

Brother Les · 08-13-2019, 11:55 AM

What is the Name of the Cooper tires? I have an F250 and run Cooper Discoverer AT3. They have run 80psi cold. from the charting this size tire should be more than enough for you to haul a slide in camper unit (over 2,000 pounds each tire). I have had my truck for around 17 years and have never wore the tread off this tire. I have changed them because of age, getting over 80,000 miles on a set. I have had two tires 'gater' on me, but had over 50,000 on those tires. Yes, damage did happen to my truck, but I can not solely blame the tires. A Huuuge pot hole caused one and I believe curbing too many times wore out the other. Cooper has been fine to me and any tire would 'let go' by the way that they are treated.

Boris0119 · 08-13-2019, 12:50 PM

Quote:

Originally Posted by Brother Les

What is the Name of the Cooper tires? I have an F250 and run Cooper Discoverer AT3. They have run 80psi cold. from the charting this size tire should be more than enough for you to haul a slide in camper unit (over 2,000 pounds each tire). I have had my truck for around 17 years and have never wore the tread off this tire. I have changed them because of age, getting over 80,000 miles on a set. I have had two tires 'gater' on me, but had over 50,000 on those tires. Yes, damage did happen to my truck, but I can not solely blame the tires. A Huuuge pot hole caused one and I believe curbing too many times wore out the other. Cooper has been fine to me and any tire would 'let go' by the way that they are treated.

Like I said in my first post that happened with less than 30K on the tires and the f250 So it is only personal experience. My father ran coopers for years and never had a problem. I sold that truck with 225 k on it and ran firestones the rest of the time. I agree Coopers are OK tires, but I will never own another set. and Have never had any other brand gator.

Tvickers · 08-13-2019, 03:35 PM

The tires are Discoverer A/T3, 245/75R16.

Truck stats:
80PSI rear
55PSI front
GVWR 9200lb
6.6L Turbo Duramax Diesel.

sugarray40 · 08-13-2019, 04:01 PM

Quote:

Originally Posted by Tvickers

The tires are Discoverer A/T3, 245/75R16.

Truck stats:
80PSI rear
55PSI front
GVWR 9200lb
6.6L Turbo Duramax Diesel.

And the sidewall states 44 PSI max?

I ran those on my Ram 2500 in 275/70/18 but were LT rated and had a max of 80 PSI on the sidewall. Truck wanted 80 rear and 65 front.

That is the confusion. If your tire shop sold you tires that are P rated, 44 PSI, then you have the wrong tires for your truck and need to go back. If you have LT rated tires, then inflate them to the mfr recommended pressures per the sticker when towing and you shouldn't have any trouble. I never did from mine.

sugarray40 · 08-13-2019, 04:06 PM

LT245/75R16 120\116R E OWL 6.5 - 8 7 9.7 30.35 7.52 44 3042 16.5

245/75R16 111T 620 A B STD OWL 6.5 - 8 7 9.6 30.31 7.05 37 2403 14

Looks like you were sold the standard load tire, STD, you should have had the E rated tire. I made the load ratings red. Copy and paste from Cooper Tire website.

Tvickers · 08-13-2019, 06:41 PM

Yes, sidewall is 44psi max. Looks like I’ll be buying new tires. Thanks for your help.

sugarray40 · 08-13-2019, 07:11 PM

Quote:

Originally Posted by Tvickers

Yes, sidewall is 44psi max. Looks like I’ll be buying new tires. Thanks for your help.

I think you should go back to the place where you got these and at the minimum have a conversation. Any tire dealer worth a salt should not have ever sold you tires not fit for your vehicle.

REL · 08-14-2019, 07:17 AM

P tires on an almost 7000 lb truck?..I'm surprised they put them on your truck...unless you asked for something with a softer ride...

Brother Les · 08-14-2019, 07:34 AM

It is good that we are having this conversation...

1) We found out, I think, that you have the wrong tires on your truck.

2) When you get the correct tires on your truck, you should have no problem with what you are hoping to do.

Tvickers · 08-14-2019, 08:53 AM

Quote:

Originally Posted by REL

P tires on an almost 7000 lb truck?..I'm surprised they put them on your truck...unless you asked for something with a softer ride...

No, I didn’t ask for them. They were recommended by the shop that put them on. An auto repair shop that does a little bit of everything. Lesson learned.

**wmtire** · 08-14-2019, 09:10 AM

Quote:

Originally Posted by Tvickers

No, I didn’t ask for them. They were recommended by the shop that put them on. An auto repair shop that does a little bit of everything. Lesson learned.

It happens a lot. We get vehicles in that have the wrong tires on them for repair/rotation and the customer gets all kind of upset when we explain we won't touch it as long as those tires are on it. Also have a lot of customers who bring their own in, wanting us to mount them...which we refuse.

It's the reason I have this sign on our counter, which I show them.

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