SO NOT LOOKING TO START A PISSING MATCH BUT TELL ME IF IM RIGHT OR WRONG..
IF A D RATED TIRE IS RATED FOR 3300 LBS THEN ITS 6600 LBS PER AXLE FOR A COMBINED 13200 LBS TOTAL FOR ALL FOUR CORNERS...SAY A 3/4 TON TRUCK HAS A GVW OF 8800LBS THEN THAT WOULD LEAVE YOU WITH 4400 LBS OF ROOM TO SPARE.IN ORDER TO OUT DO THESE TIRES YOU WOULD ALSO HAVE TO BE 4400LBS OVER THE VECHICLES GVW WHICH WOULD NOT BE SAFE ANY WAYS SO IN NOT SURE WHY SOME GUYS GET SO WORRYED ABOUT RUNNING A D RATED TIRE. EACH TO THERE OWN BUT I WILL ALWAYS RUN A D RATED TIRE.I FEEL THAT IT IS MORE THEN ENOUGH TIRE FOR WHAT I DO....JUST MY 2 CENTS.

Your lookin at two different rating categories here. The "D" Rating and the poundage rating are seperate things. I had to have a Goodyear corporate rep explain this to me since nobody at any shops I found could.

The Alpha rating, in this case a "D" rated tire is the weight rating of the sidewall which takes the stress and strain in cornering and also holds the tread in place.

The numerical weight rating is what the tread is rated for in a static position. This tells you what the tire will hold up while sitting still.

This is why so many of us that have had problems with D rated tires always report the same problem, we lift the tread right off the tire goin down the highway. Our trucks empty sit right on that border line of the D-E rating and once you load it down with anything you are over it. Sorry I don't remember the poundage he told me right now but we were right on that dividing line.

Uncle Bubba's Sig:

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99 Quad Cab, 4wd, Drag Comp W/Pump Wire & Boost Elbow installed, K&N Air Canon, MBRP exhaust, Belt Drive Lift Pump and bottom Bulkhead feed from the tank, Isspro EV Pyrometer, Boost Gauge, Fuel Pressure Gauge, DT Pro Fab Trac Bar, South Bend 13-1.25 Con O Clutch, Ranch Hand Bumper, Borgeson Steering Shaft, Black Silicone Boots, 2" Lift Soft Ride Front Coils, Solenoid High Idle Kit, Bilstein 5100 HD Shocks, Rickson 19.5 Wheels w/Hancoock Rubber, HD Maxx Link Sway Bar Links, Superlift dual front stabilizer, EGR Brakes Front and Back, RV275 Injector's, Blue Chip VP44, Prodigy brake controller, B&W Gooseneck hitch and more I can't remember right now. Not to mention more to come I'm sure.
374.2/846.7 at 30psi

SO WHY WOULD THE MANUFACTURES OF THE TRUCKS SELL THEM WITH TIRES THAT ARE NOT ABLE TO HANDLE THE TRUCK! YOU WOULD THINK IF THAT WERE THE CASE THERE WOULD BE LAW SUITS OUT THE A$$.I AM GOING TO GET TO THE BOTTOM OF THE D AND E RATING THING .WILL REPORT BACK WITH MY FINDINGS...THE D AND E RATING ARE PLY RATINGS THE D RATING IS A 8 PLY AND THE E RATING IS A 10 PLY.

The Ply ratings don't apply anymore. The new tires don't actually have ply's anymore. That's an old term that just still get's thrown around.

How bout turnin the caps locks off. Lot a folks get offended by then because it insinuates yelling and argumentative tones.

I'm not sure what you mean by this statement. To the best of my knowlege, all 3/4 and 1-ton pickup trucks are equipped with E-rated, 10-ply tires from the factory. I know mine was and my buddy's new Chevy 2500 HD was also.

dieseldude03's Sig:

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sorry bout the caps lock didnt know something like that set people of just use it all the time at work so sorry.....as for the the statment im just saying that why would these tires even be an option for are truck if it isnt safe you would think dot would put a stop to this......but then agian they would also have to put a stop to guys pulling to big of lots witht there trucks as well ...

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hey dieseldude03 you are right i looked into it and most do come with e rated tires sorry for the miss leading info.... still trying to find some info online about the weight rating differance between the 2 but cant find anything yet...

I went through this same thing myself years back with several tire dealerships, thats how I ended up on the phone from a goodyear shop talkin with a corporate rep.

Shops will sell us the tires because technically speaking for their liability purposes the D rated tires are fine for our trucks because of the empty weight. The problems is that in the real world we haul loads.