Airbags in Rear Springs

Submitted: Tuesday, Mar 31, 2009 at 20:36
ThreadID: 67383 Views:2996 Replies:7 FollowUps:3
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I am looking to put a set of airbags into the rear springs of my Landrover Discovery. Has anyone ever installed these themselves?

How hard is it? What type of cost are they?
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Reply By: Member - Jan B (VIC) - Tuesday, Mar 31, 2009 at 20:41

Tuesday, Mar 31, 2009 at 20:41
Hi Cram,
Have put of air bags on my GU find them great for standard driving and towing keeps everthing level found dont over pressurise them keep to the manual instructions and you will be ok.

regards Pete & Jan
AnswerID: 357321

Reply By: Shaker - Tuesday, Mar 31, 2009 at 22:24

Tuesday, Mar 31, 2009 at 22:24
They are easy to fit, spray a little detergent/water mix on them & they will slip in more easily.
Cost is around $200 including freight from Truck Springs in Michagan, USA. ..... SEE HERE

AnswerID: 357332

Follow Up By: Shaker - Tuesday, Mar 31, 2009 at 22:25

Tuesday, Mar 31, 2009 at 22:25
Typo ... Michigan!
FollowupID: 625468

Reply By: Member - John M (NSW) - Wednesday, Apr 01, 2009 at 07:54

Wednesday, Apr 01, 2009 at 07:54
Hi Cram
I have Poly Air Bags in both my vehicles and they work great. As above don't over pressurise them. I normally run at 5 psi in normal conditions and at about 15 psi when loaded.

When the Patrol is fully loaded for a long trip it comes in at approximately 4.1 tonnes and the air bags really help the suspension and keeps the truck level in rugged country and tracks.
The truck after the last trip to Tassie has developed cracking at the rear coil spring mounts on both sides and is getting the chassis and spring hanger area strengthened at the moment.
I do not know if this is caused by the weight of the vehicle and the terrain that I crossed or by the extra load directed to the spring mounts induced by the heavier coils and air bags, but it is a common fault in the Nissans in this location when they are carrying heavy loads.
My insurer is covering these repairs and when the vehicle was inspected by their mechanical engineer he told me that this was a major problem in the dual cab utes that were predominantly used by tradesman carrying heavy loads.
I would recommend you keep a check on these areas.
This is a little bit off the subject but I hope this helps.

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AnswerID: 357368

Reply By: Ozrover - Wednesday, Apr 01, 2009 at 09:08

Wednesday, Apr 01, 2009 at 09:08
Hi Cram.

I have fitted Poly-air bags to both of my Discoveries after fitting heavier coil springs, with the typical heavy loads that we carry they helped tremendously.

Reasonably easy to fit yourself but the last ones we had fitted by TJM in Cairns & they did a very good neat job for just over $400.00 can't remember exactly how much!

AnswerID: 357376

Reply By: Ray - Wednesday, Apr 01, 2009 at 09:23

Wednesday, Apr 01, 2009 at 09:23
Hi. I fitted a set of airbags to my 80 ser L/C. I also bought them from but also fitted a compressor and manual regulator from the too. I bought mine when our Australian dollar was high and from memory did the whole job for less than $400.00.
Truckspring delivery is great (5 days) and technical advice is almost immediate.
AnswerID: 357379

Reply By: Member - Cram (Newcastle NSW) - Wednesday, Apr 01, 2009 at 11:28

Wednesday, Apr 01, 2009 at 11:28
thanks everyone, got some prices today and TJM and ABR are both around the $400 fitted....rang pedders and they wanted $660......unbelievable...

It was similiar when I priced brake controllers the other week most auto electricians wanted around $450.00 for supply and fit the P3 controller..... ARB $350.00 big difference....

Of course it's always cheaper if you can do it yourself.
AnswerID: 357395

Follow Up By: Shaker - Thursday, Apr 02, 2009 at 22:39

Thursday, Apr 02, 2009 at 22:39
Versus $200.00 from Trucksprings ... a no brainer!
FollowupID: 625865

Reply By: Bob of KAOS - Wednesday, Apr 01, 2009 at 13:21

Wednesday, Apr 01, 2009 at 13:21

After my first trip in the D2 when the back of the vehicle was almost dragging along the ground, I had the Polyairs fitted. Thats about 5 yrs ago now and they have been great. Having a compressor and cabin mounted switch would be classy, but I just have the valves mounted under the rear bumper where I can easily pump 'em up and down as needed.

AnswerID: 357422

Follow Up By: Member - colin M (NSW) - Thursday, Apr 02, 2009 at 22:35

Thursday, Apr 02, 2009 at 22:35
Have done the same thing fitting Polybags to my Ford Ranger and found stability greatly improved when tray top camper and boat behind. Tried helper springs and they were no where as good. Professional fitting of bags was about $350 in Tweed Heads
FollowupID: 625863

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