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Discussion Starter #1
Truck had 35s and it was good
But they wore out and i a I am not a fan of wide tires and I didn't want to pay for 35 inch tires or the 18 inch rims that were on it so I got a set of wheels with stock steel rims but they're 245 75 16 and I don't like how high the RPMs are on the freeway to me it's too high I know people will say it's okay but I'm sure that it can't be good for mileage. I use my truck to haul firewood which is sometimes very heavy
 

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I would do 285's which are about 33's or 305's which are about 34" tall. If you want a skinner tire try some 255/85/16's.
 

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Discussion Starter #3
I would do 285's which are about 33's or 305's which are about 34" tall. If you want a skinner tire try some 255/85/16's.
I have 285 on my 97 GMC Sierra Z71 and I like them I have not heard of 255 85 16 I also have the option of using my old 18 inch rims but I don't know if there's an advantage to doing that I'm trying to stay with an affordable tire for one thing these trucks don't really do all that good off-road because they're so stiff so I'm not worried about having some crazy Mud terrain tire I'd rather stick with function over looks
 

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Discussion Starter #5
I just cant believe how many rpms they have a 4.10 geared truck turning. It needs another gear stock. The 235 tires cant be much of a improvement over these 245/75/16s i think a 5 percent difference.
The older diesels came with this size
 

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I love my 35" toyo's
With smaller tires the highway gear sucked!!

I have 97 4 door flatbed Zf5 4x4, 4.10. My 7.3 is upgraded a little with 6.0 intercooler, baby swamps, TS6, etc.
I would run 37's next time, my 1st gear is plenty low for towing and I wish I had just a bit more highway gear. Its not bad now but 37's would make it even better.........

Maybe you just need a better 35" tire that does not wear so quickly?
You could go to a 315 (metric) that's about a 34"
No way will I ever go smaller with this truck, 35's were one of the best improvements yet...makes it street able and I can cross states without running over 3000 rpm all day, not that the 7.3 would care
 

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Discussion Starter #7
I have 35 toyo open country mt tires. They were about toast when i bought the truck. They def help with gearing big time.
Unknown lift kit. Some front camber on axle. I put a used tire on. Wore fast. Can't afford 1300 on tires.
 

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Discussion Starter #8
I guess income tax time I can get a set of 35 again. I'm not a real big fan of these Toyos they also don't really care for a 12 and a half inch wide tire at 35 so I don't know what other options there really is other than changing my rear end gears in front axle gears to run a smaller Tire like a 33 I just don't want the cost of the 35 inch tire I don't want to spend 1200 plus dollars on tires and have them only last a year or two I use my truck to do work and get stuff done I don't need it for looks I'm not saying doesn't look cool with 35s on it I think a 38 inch tire 12 and 1/2 inch wide looks normal but I think a 35 looks too wide at that width
 

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Do not run a MT on the street
Get an AT (all terrain) 10 ply from Nitto or Toyo or Cooper and they will last more then 1.5 years
Mud terrains do not last on pavement
Mud and snow all season radial is another option, but people do not think they look "aggressive" enough

Also protect your investment, $1200 every 1.5 years is alot of $$$$, so check tire pressures, vehicle alignment and rotate them often.....

You Might be able to find somebody with an OBS who wants 4.10 gears that will swap with you?
Or upgrade to some superduty axles with a 3.55 or 3.73?

4.10 to 3.73 is just not much of a change, not enough to justify the amount of work and $$$$ involved IMO
If you run an auto transmission there are 5 speeds that can go behind the 7.3, again work and $$$$ invovled
Gotta pay to play!
 

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With the wider 18" rim, it kind of narrows (pun intended...) your choice in tired skinnier than 12-12.5 inches.

245/75R16 is about 30.5" tall
235/85R16 is about 31.7" tall
265/75R16 is about 31.6" tall
285/75R16 is about 32.8" tall (this is pushing the 7" width of most stock wheel)
255/85R16 is about 33.5" tall

For a tall and relatively skinny tire, the 255/85R16 is one of my favorite sizes.

EDIT: To get a little more road friendly 18" tire, I would either go with a 285/70R18 or 295/70R18/ Both are in the 34" range.
 

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i run 285/75R16 cooper AT-3's on stock 7.5 inch rims.
cost efficient at around 180 each, aggressive tread for mud and snow, but still quiet on the road.
 
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