Middlecalf, you didn't mention which truck you own...
My XDE-MS's were VERY squirmy for several thousand miles at least... In addition to the hard rubber compound, these tires have deep tread blocks which exacerbate the squirminess. Now that they are well broken-in (7000+mi), the tread-squirm is barely perceptible. When the camper is off I run the tires at 55psi all around which further helps to reduce squirm. When loaded I typically run at 75 front and 95 rear. I have never had any tracking problems (following grooves & ruts) at all.
The very best thing I've done to improve the road-feel of my truck was to install a DSS Steering Stabilizer. If your truck is a Dodge you may benefit from this mod'. With the combination of 19.5's, big sway-bar, Ranchos & the DSS, the truck now drives like it is on rails! I expect that this will only get better as the tires wear.
I am interested to hear reports from XDS2 owners...
Cheers
-Mark
* This post was
edited 10/30/07 11:26am by msiminoff *
So what could it be? Since you say it goes away with the former wheels & tires, there must be something with the new combination.
Other than a bad tire, I’ve experienced what you describe when running a wheel offset that puts centerline out farther. And … is the OEM vs 19.5 comparison to determine if damper is ok, a good test? My 19.5 were considerably more weight!
I been running front/rear at 90/103psi, though I tried several pressures from what the load to psi chart gives on up and didn’t like the feel at the lower pressures. Extended unloaded travel I leave the front at 90 and drop the rear to 90. Yes, the ride is a bit harsher than OEM but the MPG is great!
tycreek wrote: So what could it be? And … is the OEM vs 19.5 comparison to determine if damper is ok, a good test? My 19.5 were considerably more weight!
Hoping to get an answer here (I've also sent a note to Rickson). The 19.5's have the same offset as the OEM wheels. But they are much more weight.
If it were me... I'd put in a HD damper ... but would be very surprised if it made much if any difference in the handling as described. Since steel wheels are the only option listed matching OEM offset it tells me that your nearing a double in wheel & tire weight and a better than stock damper couldn't hurt!
That would leave tires... either pressure or some mfg issue as cause candidates. You might try cranking up pressure to see if that helps? Maybe these XDS2's don't do well at lower psi? Hum... I personally liked the feel in highway handling when running considerably higher pressures than what charts listed for my weights.
middlecalf wrote: Anybody running these? I have about 5k miles on mine (225, 19.5) now and they still have the squishiness thing going on so looking to see if anyone else has any experience. Thanks.
Compared to the Toyos I had, the XDE-MS has tread squirm and more sidewall flex.
But they are not nearly so likely to follow ruts.
Tread squirm dimishes quite a bit with break in and diminished tread height.
2003 Lance 1071 maxed out plus 200 watts PV, accumulator and bottle opener
2004 Chevy 2500HD Duramax 167", Hellwig, Reese Titan, Reese Front, LineX, AirLift, bed mat, Rancho9000, Rickson 19.5" Eliminators with Mich 225/70 XDE M/S
KF6JGX; 5W on Yaesu FT530
I've ran my 245 XDE-MS tires for 42,000 miles so far with no problems.From day one they handled great. I might be wrong but I think the minimum tire pressure recommeded is 75psi. I run my front and rear tires at 85psi unloaded, 90psi front and 105psi rear loaded. My gauge says I have 12/32" tread depth,new they have 22/32" so they are half worn out.
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