| Author |
Message |
    
Sean Roberts
| | Posted on Thursday, November 28, 2002 - 09:11 pm: | 
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Is it possible to switch the rear airbags on a 99 Disco II, to coils? I don't think the air bags flex very well and would like to switch to coils. |
Eric Pena (Evalp)
| | Posted on Friday, November 29, 2002 - 12:51 am: |
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It is possable. I had a web address to look at but can't find it sorry. |
Steve (Scrover)
| | Posted on Friday, November 29, 2002 - 01:38 am: |
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Yes, you'll need springs of course (OME 781 from EE), spring seats - ANR3578, optional upper spring isolators - ANR2938, maybe coil bump stops - RNV100060, and nuts and bolts, not sure what size yet. If you're looking for flex, loose the sway-bar, then you'll be happy! I'll have a conversion kit shortly.
Steve |
Sean Roberts
| | Posted on Friday, November 29, 2002 - 03:26 pm: |
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Does it require any welding? How hard would it be to do? |
Eric Pena (Evalp)
| | Posted on Friday, November 29, 2002 - 06:17 pm: |
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Sean, I don't belive it is going to require any welding but I could be wrong. The back should be ready to take springs. The bumpstops are probably nessasary and the nuts and bolts because they are not there now. |
Steve (Scrover)
| | Posted on Friday, November 29, 2002 - 06:33 pm: |
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Yeah, no welding. Just the seats which take two 10mm x 25mm bolts. I just checked and the bump stops are the same for bags or coils (they were different on my Classic). LR specifies a spring isolator between the top of the spring and the upper spring receiver. Not sure if it helps off-road or not. It's an easy job BTW. |
Sean Roberts
| | Posted on Friday, November 29, 2002 - 08:47 pm: |
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Yeah I work at LR centerville utah, and I had the parts guys check the prices on those numbers it all seemed pretty cheap. So I would just need to get the springs and those other things and then unbolt the rear airbags and put the isolators and bumpstops in and then the coils and be done? What about turning the compressor into a trail compressor, can it be done. Thanx for the help |
John Moore (Jmoore)
| | Posted on Friday, November 29, 2002 - 09:08 pm: |
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You are also going to have hook your rig upto test book to tell the computer that the SLS system is no longer there. |
andy
| | Posted on Saturday, November 30, 2002 - 08:57 am: |
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Hi
I really can't understand why you want to change. I really promise you, that with coils your DII will flex less good than with the airbags. In fact we have test it a couple times and there will be no coil which can be pressed to 13 cm and stretched close to 42 cm. The only thing you have to do is to get some longer shocks.
If you dont believe it, go to your dealer an check with coil rover, you will be surprised. |
Al Oliveira (Offroaddisco)
| | Posted on Saturday, November 30, 2002 - 09:03 am: |
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Andy... if you get longer shocks please be sure you add a spacer for the airbags too or you'll soon tear your bags. Then you'll also need longer brake lines and ABS lines if you ever want to run extended on the trail.
Coils have advatages over the air bags and not just with travel. |
Al Oliveira (Offroaddisco)
| | Posted on Saturday, November 30, 2002 - 09:06 am: |
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Sean, along with what everyone here has said you may still need to remove a warning light from the instrument cluster even if you used TestBook to tell the SLABS unit that you don't have SLS. Frank Greg did the conversion a while ago when he still had a D2. I don't know if his profile is current here but you might try contacting him for first hand information. It's an easy job to do. |
Sean Roberts
| | Posted on Saturday, November 30, 2002 - 12:45 pm: |
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The reason that I want to change is the airbags don't seem to flex very well. What are some thought about the airbag spacers? Do they put any stress on the bags? If i did do this how much flex would I expect? I ramped it the other day and it ramped a 560 on a 23 degree ramp. I just thought that coils on the back would do better. My friends TJ ramps 1000 on a 23 and it got 890 on a 30 degree. I watched his coils and when they got to the point where they went long enough they dropped out of the bucket for more flex. I want to have something like this, the problem with airbags is they only stretch so far and then they can't let go of the upper spring mount. Thanx for the help here. |
Eric Pena (Evalp)
| | Posted on Saturday, November 30, 2002 - 12:53 pm: |
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Sean, if you are looking for your springs to drop out like you explained you probably should go with long travel shocks and cones. This gets more complicated and expensive.
Just my 2 cents. I have OME and, although tons of flex looks cool, it's not always nessesary. More parts to install, more to break. My OME's are perfect and they got me more flex so I was happy.
This is a pic of a guys truck at full flex with OME's and 265/75 16 BFG's. Your driving skill counts for a hell of alot more than flex!
refer to this site regarding fitting OME's to a truck with airbags.
http://expeditionexchange.com/disco2frontcoils/
Oh, and I spent about $500 for springs and shocks. a 3" lift from say Rovertym will get you that bigger flex and was about $1000 when I priced it. |
Eric Pena (Evalp)
| | Posted on Saturday, November 30, 2002 - 12:58 pm: |
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woops! double post. :-) |
Steve (Scrover)
| | Posted on Saturday, November 30, 2002 - 03:28 pm: |
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"I really can't understand why you want to change"
The other reason to change, especially if you go off-road regularly, is reliability. On two recent SCLR trips that we ran, air sprung drivers drove home on their bump stops. One was a DII who blew the plastic top right off the air bag on a moderate drop-off. The other was a Classic with a bad alternator, the voltage dropped too low and the truck sat down on it's bump stops. I converted mine before getting stranded; at least the Classic has metal caps on the air bags. IMO the plastic caps on the DII air bags are really tempting fate off-road. |
Sean Roberts
| | Posted on Saturday, November 30, 2002 - 04:28 pm: |
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Yeah that Disco looks about like mine, I think that more flex makes you more stable when in situations like that. Thanx for all your help on this one. |
Sean Roberts
| | Posted on Saturday, November 30, 2002 - 04:46 pm: |
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I have been thinking that maybe longer shocks on the front will help flex, I read that write up on the suspension, that is the one that I have, and the front shocks look really short and could be inhibiting flex. Anybody have experience with this? |
Sean Roberts (Pokeyyj)
| | Posted on Saturday, November 30, 2002 - 04:54 pm: |
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Just registered, now Sean is pokeyYJ |
Eric Pena (Evalp)
| | Posted on Saturday, November 30, 2002 - 08:52 pm: |
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Well, there is no question that the lenth of your shock is directly related to the amount the wheel can drop. If you take out the anti sway bars you will get abit more.
I agree with your decision to change out the airbags with springs. It sounds like you really want that flex so I say ,in the words of Ho, "just do it" and get what you want. |
Sean Roberts (Pokeyyj)
| | Posted on Sunday, December 01, 2002 - 11:30 pm: |
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I know that this is off the topic alittle, but if I add airbag spacers should I expect more flex? Because the bags wouldn't be full all the time and could drop more? |
Al Oliveira (Offroaddisco)
| | Posted on Sunday, December 01, 2002 - 11:41 pm: |
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they can only drop more if the shock lets it drop more but in short yes, you should get more drop but your travel will be the same. |
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