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Old 12-23-2006, 11:46 AM   #1
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I have a 2004 P32 rated at 15000lb gross. I am trying to get an idea of what pressure to use in the bags. The workhorse manuel says to run 80-90psi but my teeth want to come out at that pressure. My front axle weight loaded is only 5200lbs (6000max) My tires are 19.5 inch and 80psi.
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Mike
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Old 12-23-2006, 11:46 AM   #2
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I have a 2004 P32 rated at 15000lb gross. I am trying to get an idea of what pressure to use in the bags. The workhorse manuel says to run 80-90psi but my teeth want to come out at that pressure. My front axle weight loaded is only 5200lbs (6000max) My tires are 19.5 inch and 80psi.
Thanks
Mike
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Old 12-23-2006, 11:55 AM   #3
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If the ride is too harsh simply reduce the pressure until you are comfortable. Your manual should also indicate a minimum pressure for the bags. Since you are lightly loaded, you might give that a try.
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Old 12-23-2006, 01:25 PM   #4
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rvmike,

That chassis requires a certain amount of ride height for proper tire wear and handling.The minimum ride height would be 1.75" at the lower control arm bump stop to the deflector plate right above it.My suggestion would be to weigh the front end of your coach and get a set of springs that match your frt end weight without using air bags.This keeps the alignment consitent because the ride height stays the same.Springs without air bags will also give you the best possible ride on your chassis.
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Old 12-23-2006, 02:37 PM   #5
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Mike,
Thanks for the reply. I measured that dist at 70psi and it was 2.5inches, with o air it only came down to 2 1/4 inches after driving arond the block. My coils are blue in color if that tells you anything.

Merry Christmas
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Old 12-23-2006, 04:11 PM   #6
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After loosing 4 fillings riding with 85 pounds in the air bags and 75 PSI in the tires, I started reducing the air until I had a ride I felt was comfortable. Presently the air bags are at 70 PSI and the tires at 75 PSI (225/70Rx 19.5) which is the Winnebago rating. Using a lasar thermometer on the front tires taken on the center at 3 locations, the temperatures are consistant after a run. I do not check pressure when the tires are hot.
The slamming has reduced, the steering is good and I like the ride.
I run 80 PSI in the rear, which is the Winnebago rating and it seems to be fine.
Check the Michelin RV tire guide for pressure vs weight
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Old 12-24-2006, 04:02 PM   #7
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Mike. If your ride height is 2 1/4 with zero in the bags, you don't need them. If your springs are blue paint you probably already have the beefed-up springs. I believe the stock springs were unpainted and at least one brand of custom springs are blue.
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Old 12-24-2006, 08:39 PM   #8
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Workhorse changed to Blue sprongs in 2002 with upgraded air bags.These springs were slighty larger than the Chevrolet's 7/8" diameter springs.
RVMike,
If your ride hieght is good without the
air bags,than have it lined up with zero air using our spec's and it should drive great.
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Old 12-26-2006, 10:30 AM   #9
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Mike "HOW 'BOUT THOSE COWBOYS"
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Old 12-27-2006, 07:43 AM   #10
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Thanks Depchief,

You want to kick my Dog too!
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Old 12-27-2006, 03:00 PM   #11
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Brazels RV Performance:
You want to kick my Dog too! </div></BLOCKQUOTE>That too funny!
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Old 01-02-2007, 03:31 PM   #12
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Mike,
Just returned from an 800 mile trip and found the following. I reduced my bag pressure to 70 lbs and kept the tires at 80. This was my first time towing a toad (72VW at 1800lbs) and it felt and drove much better than before.The biggest problem I had was half way down my left support fot the sway bar broke. Except for the ocassional noise of the broken bracket it drove and handled great. Will have it welded next week and try a trip with no air.
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Mike
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