Ive been looking at several different solutions for tires on my dooley. The 19.5s are ruled out cause i live in pa and our hwy department doesnt know what a smooth road is, not to mention i am always in new construction where the roads arent even close to done yet. I really wanted a wider tire mainly on the steering. Could i put 235/85r16 on the rear, and 265/75r16 on the steer. im looking at BFG AT KO. Both tires are identical in sidewall height and overall diameter. Will a 265 fit on a 16x6.5 dooley rim? Will the duals rub? im also going to do alcoa magnums or hotshots at the same time. has anyone tried this? im wondering if the front tires will be taller because i am squeezing the bead on a 6.5" rim.

33 views and noone know if a 265 will fit on the rim, or if 235 will rub?

I have a 2500 with 265's. Just rotated them today. On the front, there is no rub. I did notice that the center of the tread is a little more worn than the outsides. Now..... mine are C load range. Run them at max psi (50) for towing. Towing my fifth make the tires squat. Maybe causing the wear. Or could be the tire fit on the rim?
Wear is not excessive for me to be concerned about.

Any help?

wear on the center is overinflation. i suppose if they fit fine on a 2500 they will fit a 3500. the 2500 has 16x6.5" rims right? or are they 7

Chevmeister


I think the 235's will rub on the rear dually's if you put anything in the bed. They just barely fit with no space between them without a load. And if they touch while driving down the road they will get hot.


Since GM changed the rim off set on the new style trucks 235's are out. I've seen people with them on and they look good, but not good for working them.


Mackin has them I believe on his. What do you say Mack, how are they working out.


The 235's are taller than stock and wider.


215/85/16 is 30.6 inches tall and 8.6 inches wide.


235/85/16 is 32.1 inches tall and 9.3 inches wide


265/75/16 is 31.8 inches tall and 10.6 inches wide


These sizes are listed for Bridgestone Revo's.


There have been a couple of posts about putting 235's on our truck's. Do a search and there were some good responses explaining it better than me.


Good Luck and keep us updated on how you make out.

You can run 265's on the front, I have seen a couple of dually's with 265's all the way around with a 2" spacer in the rear. Myself I would go with 255/85R16's all the way around with a spacer in the rear.

Older truck and not a 3500HD, but I ran 235's on a 84 4X4 CC Dooley front and rear for 300,000 miles using 6 chrome rims from 84 to 94, towing trailers coast to coast, and long trips to Mexico. Never had a problem. Favorite tire was Sumitomo - tough as nails and wore like steel.

DD in BFG AT


235/85/16 is 31.8 inches tall and 9.3 inches wide


265/75/16 is 31.8 inches tall and 10.5 inches wide


the coopers im runnign now


215/85/16 is 30.48 inches tall and 8.41 inches wide


mac care to clue me in here? how the 235s fit?

I've run 235/ 85 - 16 my 86 and 95 mason dumps. the 95 had the same size tires as my 03 stock. trucks carry 4500 to 6000 lbs and they never had problems with the tires rubbing with no spacers.

The older model trucks up to 2001 could be run with a 235 but they changed the rim offset and backspacing so you could NOT use 235's on newer model Dually trucks (not the same as a cab and chassis). Don't know why, but they did.


Turfmower, what's your 03 a dually or a cab and chassis. Even though the cab and chassis is a dual wheel it's not the same as a dually.


I'm pretty sure ford and dodge can still fit a 235 on there rims.http://www.dieselplace.com/forum/smileys/Cry.gif


Thank you GM http://www.dieselplace.com/forum/smileys/Hug.gifhttp://www.dieselplace.com/forum/smileys/Angry.gif

Do search under 2500HD & 3500 Trucks for Larger tires on '03 Dually.


Heartbeat Hauler summed it up best with his quote form a web site explaining the change in rims and offsets.


Do a general search of 235 tires and there a lot of pages about it.

No kidding...I was told by the guys @ the local Big O shop that 235's will fit my '02 Dooley. http://www.dieselplace.com/forum/smileys/Confused.gif

Ive known a few guys that ran 235's that rubbed when loaded heavy and they never had ny problems, but tires rubbing cant be good. You could stick a 1/4" spacer between them.

I put the 235's on my 02. The drivers side tires will hit together with just my toolbox and full tank of fuel. OOPS! I talked to a couple wheel mfrs and tried to get an answer to wheel spacing apps for my truck. I want to keep the inner steel wheel (for support) and run aftermarket aluminum wheels on the outside. Nobody can tell me if this will work keping my 235 tires so far. Sooo a rubbin I will go.

It looks to me like a 1/2 inch spacer can be used between the dually rims and still use the standard lug nuts with plenty of thread making contact. I wouldn't go with a 3/4 inch spacer even though that might offer enough space between the 235s to work well. IMO if you wanted a wider spacer than 1/2 inch, you'd have to go all the way up to 2" in order to completely bury the existing lug studs inside the spacer. HMMM.http://www.dieselplace.com/forum/smileys/Ermm.gif

If I'm not mistaken the 3500 is a 6" rim not 6.5 inches. Some guys in the 2500s are putting 265s on a 6.5" rim, but that is still unsafe according to tire manufacturers, so a smaller 6 in. rim has got to be less safe. The 235's will rub and when I say rub I mean rub each other not the fender. This will cause excessive heat and could cause a blow out when loaded, not to mention possible body damge from flying rubber chunks. Also, the use of spacers is not recommended as the wheel is a hub-centered fitment. Although there is enough lug length, using a spacer does not allow the rim to seat itself on the hub, consequently all of the weight is shouldered by the lug nuts....not a good thing. From posts of 2 or so years ago I believe it was determined that at least a 5/8" spacer was required for the 235's. I am by no means approaching experrt level as some of these other guys are, but I do listen & read and the only way to be safe is to shell out some cash for some aftermarket wheels, i.e. Alcoa, Rickson, etc. But, this is America and America is all about choices. "We report, you decide." http://www.dieselplace.com/forum/smileys/Big Smile.gif


JP

well the alcoas im gonna mount the 265's on are 6.5" does anyone have any pictures of the space between there 235's?

Heartbeat


The factory dually rims are 6.5" wide.





Tony


I've got the factory steel rims on the inner and the Alcoa's on the outside. No problem with that.


But the Alcoa is a direct replacement for the factory rim so it should fit anyway.


And aluminuim rims can be just as strong as steel rims just check their weight rating.

You could probably get a 2" spacer that has a hub on itslef for the rim to center on. I remember a truck on the other site that has 255/85R16's all the way around with a 2" spacer in the rear.