PeteS
Texas
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Joined: 10/02/2007
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What am I missing? I'm having trouble with sway. This is a new issue and here is what is going on. I have a truck that I bought used. It's a dodge 2500 diesel, lwb, 4wd, quad cab. When I bought it it had big tires, 315/70/17 on stock steel rims. It was great to pull with, I have never had any sway. I recently bought wheels from an 2008 version of my truck. The new rims are stock aluminum and the tires are stock 265/70/17 "E" rated tires. I have pressure set at 70psi in back and 60psi in front as stated on the vehicle. The trailer tires are set at 65psi. I think the trailer is loaded the same and I think the wind situtation was the same ( there is always a SE wind in south Texas in the summer). The truck and trailer was all over the place today, first day to pull with the new tires on. The only thing I can think of is that the height of the truck is lower now by about 2 inches but the trailer still shows as to be level. I even took the WD chains down to the second link to try to put more weight to the front of the trailer. The sway bar which never seemed to even be needed before I also tightened down firm. Is it possible that the tires are making a difference? These are good tires the BFG's that come on the new heavy duty dodges. Any help would be appreciated.
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Turbo Diesel Dude
Green Mountain, NC
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Joined: 01/10/2005
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My BFGs on my 2500 CTD QC 4X4 were all over the place usually. Replaced with Cooper Es after 25000 miles. Truck settled down. Also have Maxxis Bighorns and it's still pretty smooth/no wander. JMHO Got about 40K on Coopers and still look fairly good. Have the Maxxis waiting in the wings when they're worn out.
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fla-gypsy
North Florida
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If it was fine before the tire change, and no other factors have been altered then you already know the answer. It's the tires. You may need to go back to sqauer 1 and reset everything on your WD hitch to get it back right.
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dyb
s.c.
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Maybe start from scatch with hitch set up since tv is 2" lower
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jshul
Belmont, CA
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Try going to maximum inflation (80 lbs. I believe) on TV.....
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NGRRFan
Colo. Spgs., CO
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jshul wrote:Try going to maximum inflation (80 lbs. I believe) on TV..... This is what I would do. I replaced the tires on my truck with the same load rating and size tires, just a different brand (Falken). They were as squirrelly as all get out when the pressure was at 65-70 psi. As soon as I loaded them up to 80 psi things calmed down some. Guess their sidewalls aren't as strong as other brands and I bet you are in the same predicament.
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PeteS
Texas
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Thanks for the help. The 80 psi thing, is that just in the rear or all around? I am a little confused by the dealer rec. 60 in front and 70 rear. Seems like when using a WD hitch you would want the same all around. Is the max. pressure specific to the tire brand?
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kwlincoln
The Woodlands, TX
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Joined: 03/25/2006
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I keep the same weight all around. It sure won't hurt anything. Whether it solves your problem is another thing.
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NHguy
NH
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Read the fine print on the tires, and set them to that maximum. But also, you really ought to reset the hitch since the truck became lower when you changed the wheels. When the tongue gets lower the WD bars don't transfer as much load to the front of the truck. You probably have lightened the steer axle and loaded the drive axle.
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beemerphile1
NE Ohio
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You actually made drastic changes to the tow vehicle. I would park on a level spot and start from scratch on setting up the hitch. Then I would look at other issues starting with the tire pressure.
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