Tire Size poll

[JCM5]

This is a 1996 dually,im in the market to replace the stock tires after 130K. Currently 245/65 R16
looking to add taller tires that will fit without modifications.
Looking at 285/75
Wondering what advantages or disadvantages there would be from one to the other.
I realize the 2mph difference.. load range both E
any other issues? I would like to go to 275/65 but the dually rims will not allow for the required minimal 3/4" clearance.
I use the truck 99% of the time for pulling a trailer on long 1K trips.
Looking at Michellins

[a5150nut]

Im running 285/75 on my 94 k2500. Just slight mod to wheel well in front of doors and to the rear eadge of the front bumper. Running Cooper ST's. A little raod noise and they rub when new once in a while pulling into drive ways fast. :eek:

[Barry Nave]

Dually,235/85 for inter/outer/between tire clearence if loaded weight is not up to the GVWR.
My truck run's 225/85 and at time's I load it to the max and the inter clearence all but touches. I'm sure at times, even then they do ;)

[BuffaloGuy]

If you get the tires that close then you can't use chains. Heavy mud or off roading can be a problem too. But if these aren't a worry then they sure look cool and do lower engine rpms. As for me I have to reserve the right to chain-up!

[cruzer]

The thing to watch when purchasing E rated tires or other letter designations is the actual wt rating in lbs. on the sidewall. Not all E's have the same max load. I've seen E's range between approx 2500lbs to 3450lbs. I'm sure other letters wt ratings are a range too. FYI

[Scottpearce]

This is a 1996 dually,im in the market to replace the stock tires after 130K. Currently 245/65 R16
looking to add taller tires that will fit without modifications.
These tires are only about 28.5 inches, which should put you around 2650 rpm at 65 mph, I bet that is murder on the ol' mileage, eh? :eek: I know you can run 235/85's like me. These are about 31.7 inches and would lower your rpms to approximately 2350 at 65 mph. :cool:

If your stock tires from the factory were the same as on my 93 drw crew cab (225/75 R16), and you didn't correct your speedometer with the 245/75 R16's, then you are actually traveling slower than your speedometer indicates (about 2.5%)

[C.K. Piquup]

I had a`77K30Dually that I installed 9.00x16s on(about the same as 285/75x16s).I went to a machinist,had him fab longer studs&thicker spacers.What an awsome look(especially back then).It was expensive,though.Then a friend bought a new`80K30c&c,wanted the same set-up.He goes to truck shop and bought"off the shelf"studs&spacers for a larger truck,smartass.I learnered to ask more questions.I`d like to see 255/85x16s on a drw.They`re not that wide.Keep on askin`.Good Luck

[Uncle Wally]

How big of a tire can you get on the dually truck without it rubbin on the fenders etc. I know that one might need spacers for the rears, so that's not an issue. I was planning on running 235/85R16's when I finally get the trans back together. Was thinking maybe even a touch taller, but I sure don't want to lift the trucks suspension.

Waldo

[eracers999]

255/85/16 and they touched all the way around.
So i contacted Fred at Wheeleadaptors.com and he sent me 2 spacers made from billet aluminum.
They are conicle and piloted over the hub on the first rim, comes with nuts you bolt it on over the 1st rim and hub then you open up the second rim to 4.600 (stock is 4.567) and then bolt the outer rim on. Works excellent and you have the 1 3/4 to 2in you need to load heavy.
Absolutly love the ride from these tall tires.
Love the help it gives to the gearing end too.
Fred at wheeleadoptor.com 818-992-5700 he is great to talk to.
He is in Van Nuys CA.
Kent