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Old 12-29-2014, 10:39 PM   #1
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Installing new Firestone Coil Rite Air Spring kit

We have a 96 A Class Hurricane sitting on a Chevy p30 chassis. The front has always been slammed to the ground and without auto levelers we've had to shim up the font wheels on thick boards to lever it out when parked. Finally I got around to ordering the air spring kit and was curious if anyone has any suggestions. First off I haven't a jack to lift the font to decompress the spring but I do have enough room to scoot underneath to work. Is it possible to install these with the spring compressed? If I get the air bags installed is it ok to inflate these to raise the front off the ground or dose the front need to be up before inflating the bags?

Click here for the installation of the Coil Right air kit for the p30 chassis





Yeah, as you can see I got a few other projects in line. New roof vents and black tank tornado rinse kit to install. Good thing were in Florida...
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Old 12-29-2014, 11:25 PM   #2
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You can try to get them in without a jack but most likely you will need to find one to lift the frame not the axle. As for air what do you mean raise it off the ground? These will raise the front end by pushing down on the axle and up on the frame the wheels will not leave the ground. Once they are in and all plumbed up just add air and never let them get below 7 lbs, you will most likely be up near the max pressure to make it ride normal. Check all your fittings with soapy water once installed and aired up for leaks.
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Old 12-31-2014, 02:27 PM   #3
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Two bottle jacks should do it. Remember to use jack stands once it is "up", because if it falls off the bottle jack or the bottle jack fails you won't get pinned under there. I know there is enought room in most places, but if your chest gets caught under a low spot you could suffocate pretty quickly.
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Old 12-31-2014, 03:26 PM   #4
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Good luck. This is not an easy job. You will need jacks to raise the frame. My suggestion is take the air bag and make it look like a hotdog bun or taco shell, then fold it in on itself, use zip ties to tighten it up and make it smaller so it will fit through the hole in the A frame. Cut the zip tie after it gets pushed into the spring. You may need some vaseline to help slide it into that small hole. Use jack stands to back up your jacks. I've only done this once and it takes patience.
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Old 12-31-2014, 03:35 PM   #5
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Quote:
Originally Posted by DD788Snipe View Post
Good luck. This is not an easy job. You will need jacks to raise the frame. My suggestion is take the air bag and make it look like a hotdog bun or taco shell, then fold it in on itself, use zip ties to tighten it up and make it smaller so it will fit through the hole in the A frame. Cut the zip tie after it gets pushed into the spring. You may need some vaseline to help slide it into that small hole. Use jack stands to back up your jacks. I only done this once and it takes patience.
Looks to me like the OP is installing Firestone helper air springs. Not replacing the air bags that fit inside the coils.
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Old 12-31-2014, 03:54 PM   #6
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Hi Doug,

The instructions you listed are for the 'air bag inside the coil spring' "things". The photo half looks like helper air springs so I'm not sure exactly which you are doing.

If the former (air bags inside the coil springs), I didn't find it to be a difficult job but it did take some time and finesse. My write up is here. I had hoped that these bags would solve the same problem on my rig (compressed springs) - they did not. I would have been money ahead to have a shop replace the coil springs.

The previous suggestions have been good - a couple good bottle jacks, stands, and squeeze that bag into the smallest/thinnest shape you can get. Couple other tips - do not forget to insert the urethane-like spacers - they are a bugger to get into place after releasing the bag to 'take shape' and, if you have existing/leaking bags, cut/pull them out using whatever method is easiest. I cut mine into several pieces and pulled out in chunks with vice-grips.

Oh, also... The job is easier with the frame jacked up so the spring is extended as much as possible.
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Old 12-31-2014, 04:10 PM   #7
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Quote:
Originally Posted by JFNM View Post
Hi Doug,

The instructions you listed are for the 'air bag inside the coil spring' "things". The photo half looks like helper air springs so I'm not sure exactly which you are doing.

If the former (air bags inside the coil springs), I didn't find it to be a difficult job but it did take some time and finesse. My write up is here. I had hoped that these bags would solve the same problem on my rig (compressed springs) - they did not. I would have been money ahead to have a shop replace the coil springs.

The previous suggestions have been good - a couple good bottle jacks, stands, and squeeze that bag into the smallest/thinnest shape you can get. Couple other tips - do not forget to insert the urethane-like spacers - they are a bugger to get into place after releasing the bag to 'take shape' and, if you have existing/leaking bags, cut/pull them out using whatever method is easiest. I cut mine into several pieces and pulled out in chunks with vice-grips.

Oh, also... The job is easier with the frame jacked up so the spring is extended as much as possible.
Thanks! All you all have made it seem much easier that I thought. Im so glad I posted before doing the work. Im hoping perhaps it might raise up the front at least and inch. But maybe not. We have the RV weighted down a good bit. I was hoping maybe the coil rite bags would do the trick.

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Old 12-31-2014, 04:12 PM   #8
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Quote:
Originally Posted by 96 Wideglide View Post
Looks to me like the OP is installing Firestone helper air springs. Not replacing the air bags that fit inside the coils.
I'm going by the instruction sheet the OP posted.
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Old 12-31-2014, 04:23 PM   #9
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Originally Posted by DD788Snipe View Post
I'm going by the instruction sheet the OP posted.
Yeah, I opened the coil rite box today to have a look at the inserts. Man, they are thick. I can see it's going to be a job compressing out the air and zip tying them. Not doin this on a cold day for sure.
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Old 12-31-2014, 08:17 PM   #10
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Quote:
Originally Posted by JFNM View Post
Hi Doug,

The instructions you listed are for the 'air bag inside the coil spring' "things". The photo half looks like helper air springs so I'm not sure exactly which you are doing.
I just caught that it's some that are slightly confusion for the project that Im about to tackle. This box says it's the Firestone Air Helper Spring Kit. Here are closer pictures of the packaging and the items inside. This is the airbag inside the spring for extra support.






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Old 12-31-2014, 11:44 PM   #11
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I installed these 2 yrs ago on my last motorhome an 89 Winnebago. The original factory air springs were in pieces. I will second the previous post on installing with zip ties & Vaseline. The soap idea the instructions give was worthless because it dries out too soon. Borrow jacks if necessary but you will save yourself a lot of time and skinned knuckles. When raised the coils in the springs get wider so its easier to push against the airbags to position them. Make sure you get the insulating washers in the correct positions before taking the cap off the bag air valves or reversing things is a bear. (Don't ask me how I know!) Take your time, and be careful. When mine were done driving the motorhome was like night and day. Less porposing on bumps, less body roll in turns, front end sat up better, and no more pushing into the rumble strips when trucks passed me on the interstate. Excellent upgrade for some of the motorhomes in the crowd. Good Luck!
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Old 01-01-2015, 08:39 PM   #12
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I had them installed on my 82 PA, P30 and it was a huge improvement then I replaced all shocks with Bilstiens (couldn't swing Konis) Even better. Now I just need new rubber.
The shop that did them did a good job, although the fronts leaked (they fixed) and the rears blew the following year, again they replaced them under warranty. So now they are fine. It was there first time installing them so I game them a break.LOL
I have 80 lbs in the front and 80 in the rear's. I started with 70 front and back but 80 is better.
I believe that she sits more even now even with toad hooked up.
You can see in the Picture to the left....
Happy New Year,
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Old 01-04-2015, 01:46 PM   #13
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Air helpers

i just change mine but I took the spring out to do it I spent about 1 1/2 hours to do both sides I use jack stands and I put the tire/rim under the frame of the rig I work on that will always keep the rig at least 6 inches off the ground it may pin your leg or chest but it won't take your leg off or crush your chest and kill you
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