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08-20-2011, 08:33 AM
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#41
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Rivet Master
1968 28' Ambassador
Cedaredge
, Colorado
Join Date: Jul 2008
Posts: 2,542
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Wow to much scale talk for me here. I put it level and if it drives nice it works. But then I don't worry about it to much.
But as for your tire wear problem:
You never rotated you tires?????? That should happen every 5-6 thousand miles. THat is why your truck tires are worn. It has nothing to do with your set up. Really it doesn't. As for your trailer I'm not sure. The only reason I have seen uneven ware on trailer tires was my friends trailer who had a bad axle.
Don't sweet the scale set up. If you did it once and it was fine, it's not going to change the next time you go back or the next. You you could lighten up those bars. It will put less stress on the trailer and have the axle checked out.
__________________
Jason
May you have at least one sunny day, and a soft chair to sit in..
2008 5.7 L V8 Sequoia
AIR # 31243
WBCCI # 6987
FOUR CORNERS UNIT
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08-20-2011, 08:36 AM
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#42
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Rivet Master
1988 25' Excella
1987 32' Excella
Knoxville
, Tennessee
Join Date: Oct 2010
Posts: 5,095
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I am sure about the bars. Go witht he 750. I pull a 25 footer with a 2500 Dodge with no problems at all. I did go from the 1000 lb bars the dealer stuck me with to 800 lb. One wild idea I have after reading all this is that tires wear from slipping. Is it possible with the stiff bars and the huge leverage you are using to hitch (I can do ours with one hand) that your rear wheels are actually lifting and wearing from spinning in some situations? That would also transmit a huge amout of load back on the rear axle of the trailer, causing the rear tires to overload.
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08-20-2011, 09:10 AM
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#43
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Rivet Master
1968 28' Ambassador
Cedaredge
, Colorado
Join Date: Jul 2008
Posts: 2,542
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Another thought here. Rear tires don't just wear from extra weight ( down force). But pulling the extra weight of the pull force. Even though you equalize the weight with the hitch you are still pulling the same weight. Therefore your tires need to work harder.
I like the tire slipping idea.
If your bars are to stiff there is no flex or give
Then your shocks are rendered useless or can't adsorb properly thus on a bump your tire could skip without notice. Even a 1/2 inch or so of slip will Start to wear.
Rotate tires and change your bars.
__________________
Jason
May you have at least one sunny day, and a soft chair to sit in..
2008 5.7 L V8 Sequoia
AIR # 31243
WBCCI # 6987
FOUR CORNERS UNIT
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08-20-2011, 10:24 AM
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#44
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Rivet Master
Airstream Dealer
Corona
, California
Join Date: Feb 2002
Posts: 16,497
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Quote:
Originally Posted by palmtreegirl
I'll be heading back to the Scales.....my quandry is about the bars - 1000, 750.....I'm not sure about those.
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550 bars would be the best choice, because of the HD and then some, tow vehicle.
Andy
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08-21-2011, 08:29 AM
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#45
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Rivet Master
1968 28' Ambassador
Cedaredge
, Colorado
Join Date: Jul 2008
Posts: 2,542
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The other thing to consider is: what tires do you have. C D or E rated tires? You will get a longer life from an E tire but a harder ride.
__________________
Jason
May you have at least one sunny day, and a soft chair to sit in..
2008 5.7 L V8 Sequoia
AIR # 31243
WBCCI # 6987
FOUR CORNERS UNIT
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09-13-2011, 05:34 PM
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#46
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3 Rivet Member
2009 25' SS International
Pasadena
, California
Join Date: Jul 2009
Posts: 156
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some good thoughts here, i doubt i have "slippage" after all my drive axle has 4300lbs... but it is the drive axle so i guess it makes sense it does wear more...
the one worn tire on the trailer might have been from an accident (a car hit my trailer) but i did drive some 500 miles after that before checking alignment (and having the trailer repaired)
i just had my bearings repacked in that process they did check alignment brakes etc... and nothing showed wrong... i have a new tire on there now so time will tell...
in regards to the hitch, i'm just reluctand to drop some $500 on trying out lighter bars... i need to buy an entirley new hitch system because of the bar size...
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09-14-2011, 07:34 AM
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#47
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Rivet Master
1988 25' Excella
1987 32' Excella
Knoxville
, Tennessee
Join Date: Oct 2010
Posts: 5,095
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Your drive axle weighs 4300 when sitting level. When the rig goes through a dip the weight bars lift the axle. Ever see the picture of the Olds Toranado pulling the Airstream with the rear wheels of the car removed?
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