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how to make Pro Comp full leaf springs softer

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Old Feb 5, 2013 | 05:50 PM
  #31  
Loosest's Avatar
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Year: 1999
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^YES! Thank you!
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Old Feb 6, 2013 | 07:18 AM
  #32  
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Originally Posted by MUKAK
i have 265/70/16 BFG AT.. should i drop my pressure lower than 35?
Look at your Owner's Manual, it should give you a PSI setting.
I read 33PSI for stock 225 tires. Bigger tires have more contact
on the ground and should have a reduced pressure.
Try 28PSI for a few days, see how it feels....
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Old Feb 6, 2013 | 09:45 AM
  #33  
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From: Northern Ontario, Canada
Year: 1990, 1999, 2000
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i was also gonna say longer, maybe boomerang shackles.

but they will break in and ride softer over time.
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Old Feb 6, 2013 | 10:38 AM
  #34  
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From: SoCal
Year: 1994
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Originally Posted by Bob98Classic
Look at your Owner's Manual, it should give you a PSI setting.
I read 33PSI for stock 225 tires. Bigger tires have more contact
on the ground and should have a reduced pressure.
Try 28PSI for a few days, see how it feels....
Contact area is dependent on tire pressure, not tire size. Basically:

contact area = (weight on tire)/(tire pressure)

Changing tire diameter or width mostly changes the shape of the contact but area is constant.
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Old Feb 6, 2013 | 11:00 AM
  #35  
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From: Lynden, WA
Year: 1998
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Engine: 4.0
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Either way. I ran my 35" KM2s at 20-25 PSI and it handled better, felt better, and the tires wore more evenly.
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Old Feb 7, 2013 | 05:23 AM
  #36  
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Originally Posted by sreeb
Contact area is dependent on tire pressure, not tire size. Basically:

contact area = (weight on tire)/(tire pressure)

Changing tire diameter or width mostly changes the shape of the contact but area is constant.
Contact area = weight on tire, tire pressure, shape of tire (rim width).

My 265 tires take a wider rim than my 225s to get a good shape, and

correct contact area...
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Old Feb 7, 2013 | 08:39 AM
  #37  
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From: Edmonton
Year: 1990
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Originally Posted by Bob98Classic
Contact area = weight on tire, tire pressure, shape of tire (rim width).

My 265 tires take a wider rim than my 225s to get a good shape, and

correct contact area...
good point bob! rim width may be why pressures change in the same sizes of tire.
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