How do they measure lifts?

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Sep 18, 2010 | 02:50 PM
  #1  
When a company claims an amount of lift you will recieve from their product what is it that they measure to give you the answer. do they mearure original ground clearance to lifted ground clearance? i ask this because if this were the case, wouldn't it depend greatly on what type of tires you start and end with. If you go from 225/60/16 to 32s you would get a different measurement of higth then going from 235/65/16 to 32s even with the same lift installed. So how do they accurately get a good measurement not knowing what tire size your starting with or ending with. i was always just curious about how this works. I just know on mine, after my lift and tires i ruffly ended up with about 5" of additional clearance.
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Sep 18, 2010 | 03:17 PM
  #2  
One uses the tire diameter as a control. keep the same tires on before and after. measure the difference. Obviously bigger tires heightens your rig but tires mostly help with axle clearance and ease over obstacles. Id guess a company keep stock tires on a car, lifts it, measures out the difference. Or just a difference in length of coils springs and leafs..
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Sep 18, 2010 | 04:59 PM
  #3  
Center of the wheel to bottom of the fender opening. Shouldn't change regardless of how big of tires you put on. However trimming your fenders would obviously skew the measurement.
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Sep 18, 2010 | 05:38 PM
  #4  
yea, as gpXJ said, they either measure from center of centercap on wheel to the bottom of the flare, or from the top of the axle tube to the bottom of the frame if the fenders were trimmed on the "test" vehicle.
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Sep 18, 2010 | 10:03 PM
  #5  
Gotcha, thanks for the info! now i know.
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