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Old 12-16-2014, 09:02 AM   #1
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Air Bags

In the new year I'm thinking of adding some rear suspension help. Not sure that I'm going to need it, but have a feeling that I might. I'm interested in either RoadMaster Active Suspension or a set of quality air bags such as Firestone RideRite.

IF I went the air bag route, I need to know if the stock kit will work with my truck. I swapped out the factory 1in rear block between the leafs and axle for a 2in block... Will the bags still fit in there OK or do I have to do something more to account for the extra inch of lift? Firestone won't return my calls...
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Old 12-16-2014, 09:20 AM   #2
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I installed RAS last year on my truck, and I really like it. I chose it over air bags because it is truly a passive system; it's there when I need it under load, and since it is a progressive system, the empty handling is significantly improved. No air bags to inflate/deflate as the circumstances change, no air lines to run for installation, just excellent bolt-on performance, easy!
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Old 12-16-2014, 09:26 AM   #3
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Did it affect the unloaded ride height of the rear end? I've got my truck leveled out just perfectly and love the way it sits with 1in of rake... I don't want to have the back end jacked up again like it was stock.
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Old 12-16-2014, 10:05 AM   #4
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Did it affect the unloaded ride height of the rear end? I've got my truck leveled out just perfectly and love the way it sits with 1in of rake... I don't want to have the back end jacked up again like it was stock.
Mine LOOKS a little higher in the rear. I have a buddy who has the same truck and his is bone stock, but I've never actually measured if there is a difference. If it does sit higher unloaded, it's not much. I don't concern myself with it being level when unloaded, mine drops a bit when I load it down, and it rides nice and level.
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Blue Ox SwayPro (BXW 1503)

Upgraded from an REI internal frame backpack and a Eureka 1/2 dome tent!
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Old 12-16-2014, 10:46 AM   #5
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Give Nancy at Helwig Spring a call.. She has personally installed every item they sell on a vehicle so that she will know what she is talking about when answering questions. I would include her direct line 800 number but her card is 2000 miles away right now. If you talk to her tell her Seann from Saskatoon Canada says HI. I got my airbags from her...
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Old 12-16-2014, 11:40 AM   #6
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Give Nancy at Helwig Spring a call.. She has personally installed every item they sell on a vehicle so that she will know what she is talking about when answering questions. I would include her direct line 800 number but her card is 2000 miles away right now. If you talk to her tell her Seann from Saskatoon Canada says HI. I got my airbags from her...
Helwig has some springs that act very much like the RAS. Very much like an "add-a-leaf" system (Helwig Pro Series IIRC, http://www.hellwigproducts.com/produ...ol/pro-series/).

Helwig almost got my money; that is to say I had it narrowed down to the RAS and Helwig Pro Series system, and basically ended up flipping a coin. RAS was SLIGHTLY more desirable because it has SOME adjustment to it. Though I tried the "lesser" setting and it didn't do me much good, I ended up going up to the maximum support adjustment.
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Old 12-16-2014, 12:36 PM   #7
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I have the Firestone bags on my 2500 Avalanche. Didn't need them for the weight, I had them on my 1500 Avalanche and noticed they help keep the rig stable. You would think air bags would make it more bouncy but I find just the opposite to be true.
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Old 12-16-2014, 01:19 PM   #8
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I'm leaning towards the bags for the ability to customize ride height and stiffness and not affect the rear end ride height. That being said, any more ideas on the issue of the larger rear lift block?
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Old 12-16-2014, 02:42 PM   #9
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I'm leaning towards the bags for the ability to customize ride height and stiffness and not affect the rear end ride height. That being said, any more ideas on the issue of the larger rear lift block?
Like Timbrens?

http://timbren.com/
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Blue Ox SwayPro (BXW 1503)

Upgraded from an REI internal frame backpack and a Eureka 1/2 dome tent!
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Old 12-16-2014, 02:54 PM   #10
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The issue with Timbrens on my truck is that they will require an extra inch of squat before they become effective. On a stock 4X4 let's say there is 1in gap between the Timbrens and axle... Truck squats 1in, Timbrens are in contact. My truck is an extra inch higher in the back, so there is now a 2in gap between axle and Timbren... Truck must squat 2in before Timbrens are in contact. This is why I'm thinking bags are best.
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