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Oh...... Squirrel!
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Yea I went from a 17 to a 19.5 with a 12 ply tire and the ride was horrible for a wial. Took a trip to vegas to make them good. On my 10 ply 17s I ran 70psi in the from and 65 in the rear. What do you have yours set at?
 

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Oh...... Squirrel!
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Most likely it's just the 10 ply and the wheel size, you've got a double whammy there. You'll get use to it. It'll be a lot safer and fell more stable while towing. What kind of tires did you get?
 

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Oh...... Squirrel!
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I was thinking the same thing....I'm replacing my stock 245 with a set of 305's on H2 rims. I'm pretty sure the ride will be a bit rougher....
 

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Oh...... Squirrel!
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I will have to check the recommendations....The Toy Hauler that I will be towing will weigh approx 10K loaded (5th Wheel).
 

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I have them set at 60 all way around. The tire recommends 80 :rolleyes:
Is that running empty? I found that with my trucks and using "E" load rated tires that about 45 - 50psi in the rear and 55psi in the front when unloaded gave the best wear characteristics and also a better ride. When hauling heavy, the fronts get 70-75 and the rear gets 75-80.

My trucks include:
1997 GMC K2500 4x4, EC/LB (8600 GVW model) roling on 235/85-16 "E" rated Mud King XTs. This is now my hunting/work truck.

2009 Chevy 3500HD SRW, 4x4, EC/LB roling on 265/70-17 "E" rated factory installed tires.

I use the same tire pressures system in both trucks.
 

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Quicker Then Brian!
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jason the best riding tires i ever had were my 35's

that being said ya dont need 60 for around town. 45 will be fine and ride alot better
 

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Slave to the Interwebs
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I usually run my tires at 50-55 in town and inflate them to the recomended pressure when doing a lot of highway driving. It does help the mileage on the road.
 

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I went from 265/70/17 goodyear wrangler E rated 10ply that were rougher than hell to 285/65/18. These new trail grapplers are quiet and ride much smoother over nasty heaves in the road. They too are E rated 10 ply but more rubber made a difference. I run 55 in front and 50 in rears. Would love to hear what others are running trail grapplers at. My bro run a 35 inch D rated tire on his cummins and loves the smoother ride over E rated tires hes had before. You give up a lot when hauling heavy load tho.
 

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Oh...... Squirrel!
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