Put on new tires, now the back end sways out of control!

[The_Handier_Man1]

From: chik  (Original Message)
Sent: 3/21/2002 1:27 PM

Hello All,
Last year had new tire's mounted (brand-Kelly) on my 79' Chieftain and set
off to my favorite camping ground. I no more than got onto the freeway and
began to increase my speed to realize I could barley control the my rig due
to the back end (tail wagging the dog). Instead of calling quits to this trip, I
continued at very low speed to have somewhat of control 35mph. Hear's a
better discription of what it felt like in the drivers seat. Your fanny feels like
it is floating from side to side and it's a feeling that you'll never forget especially
after I almost layed the rig over. Prior to my return back home, my sister
took 5 pounds of pressure out, started with 90 pounds of pressure. She drove
it out of the camp ground and headed home. We both were still feeling the
wagging but not as severe. I also had friend's following me and watching the
movement of the rig. They called my cell phone and asked how is it handling
and feel, because your rig looks like a drunk driver is behind the wheel and
if I were a cop, I'de pull you over. If any of you have had the (tail wagging the dog) horror, please advise with any idea's with what the problem might be.

Chik



From: Cousin Eddie
Sent: 3/21/2002 3:31 PM

That certainly does not sound like much fun! Check your tires to see what is listed as the maximum inflation. Then make sure all 6 tires are properly inflated and not overinflated. You may want to use two guages in case you have been using is defective. If the front tires were way over the max it will feel like you are riding and steering on top of two basketballs. This can make things difficult to controll with any precision.

If all the tire pressures are in the acceptable range you probably should check out the rear suspension to make sure you don't have any broken leaf springs. While you're crawling around under there you should check the front eye bolts on the springs, the bushing it bolts through and the mount. Then check the rear spring hanger, bolt, bushing etc.

I hope it turns out to be something simple. Let us know what you find.



From: chik
Sent: 3/22/2002 10:47 AM

Thank you Cousin Eddie for your input. I've really pounded the pavement on
this awfull experiance and the results that I have been getting from other RV'er,
it's a miracle that I am sitting here today talking about it because I was sold
tire's with only 2 ply sidewall. This information brought me to tears. I'm so
terrified to get behind the wheel and drive it. Somehow, someway, I'll have
to collect myself enough to inform the folk's whom sold me these (ill-fatal)
tire's. Again, thank you.
Chik



From: UluzYarx
Sent: 2/14/2004 7:56 AM

Hi Chik

If you post your: -
Tyre cross section (say 8.50)
Tyre  aspect ratio (say 80)
Tyre size (say 17")
Road wheel diameter (say 18.25")
Rim section (say J)

I will tell you how to set your RADIAL tyres to the correct pressure for your vehicle for the load that you carry.

Your tyre vendor or the manufacturing company can tell you the aspect ratio and the rim section.

All my experience is that radial tyres make a dog's diner into a fasticious man's feast.

Dave