HowieE
Full Access Member
I'm not an EX or Burb guy but Right Off the Top I'd question the 45 lb tire pressure. What does the Air Stream weight, by it's self, as compared to the tire pressure recommendations (per tire) On the tire(s) ? Same thing with the Ex tires.
Then, you get into the Set Up on the WD hitch verses wheel base. You may need (probably will) to change the adjustments (Shims) on the WD hitch from the Burb set up to the Ex. Weight per Axel might be right but the way it's transferred, can make a difference.
I'd still start with the Tire Pressures. Try putting the Max pressure as recommended by the trailer tire maker.
Tire pressures on the truck and trailer are set against the manufactures inflation charts plus 5 lbs. Most people, and tire dealers, are not even aware these charts exist. Trailer weight is 8300 lbs. Using 225 75 16
that would call for less than 40 lbs using the inflation chart.
http://www.goodyear.com/truck/pdf/databook/5113_Lsec_V.pdf
I posted a Goodyear chart only because Michelin has taken their chart off the web. Charts are the same tire for tire
The hitch is set up against scale weights on front and rear axle of the truck.
The same system of set up and tire inflation has been used for my last 4 TVs. with over 200,000 miles
I have towed this trailer with a 1/2 ton Suburban and a 3/4 ton Suburban and never even knew the trailer was back there.
It appears there is an inherent problem with the Excursion and I am looking for those who have solved this problem and just how they did it.
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