Airbags over springs Yes/No

Submitted: Saturday, Nov 17, 2007 at 21:20
ThreadID: 51716 Views:2903 Replies:6 FollowUps:11
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Since getting our CT and building a set of drawers for the rear of the chariot, there has been an extra load put behind the rear axle.
When I picked up the CT, I thought it towed real well, but now with a bit more weight behind the axle, I can notice a difference.
I don't really want to put heavier springs on the rear, as it rides well without too much weight in the back and I don't want to lose that comparatively good ride.
I am thinking of putting a set of airbags on, and am wondering if anybody has any comments on the merits of airbags.
I have had a fair bit of experience with airbags on coaches and trucks and trailers, but not on 4bys.

Dave
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Reply By: Member - Hughesy (NSW) - Saturday, Nov 17, 2007 at 21:39

Saturday, Nov 17, 2007 at 21:39
Just take the leap and get yourself a 100 series Dave!!! ;))) Then you'll know all about "comfortable ride".

I'd go airbags - atleast then you can still put it in the shed....unlike someone else we know....
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Follow Up By: Kiwi & "Mahindra" - Saturday, Nov 17, 2007 at 21:46

Saturday, Nov 17, 2007 at 21:46
or an 80 series....ever since we got the Navara ive had a sore back - litterally - Ill get use to it....drove the 80 the other day and felt like a queen again!

Laura
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Follow Up By: Dave B (NSW) - Saturday, Nov 17, 2007 at 22:03

Saturday, Nov 17, 2007 at 22:03
I know what your getting at Hughsey.
My model has slightly softer springs than the normal 60 series wagon and I don't want to make it any rougher to ride in.

Laura, not sure I want to get into an 80 series and feel like a queen.
Seriously though, coils give a much better ride than mine, but I have no intention of getting out of mine.
Mines only a pup yet. 20 year old pup.

Dave
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Follow Up By: Kiwi & "Mahindra" - Saturday, Nov 17, 2007 at 22:21

Saturday, Nov 17, 2007 at 22:21
A queen because the seats were molded to what I like, she rides like its on clouds - thanks to wnderful springs....just ask Bucky (Vic member)....not because its sweet car but because how comfy it is to drive...

Laura
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Follow Up By: QLD Kev & Darkie - Sunday, Nov 18, 2007 at 07:30

Sunday, Nov 18, 2007 at 07:30
A sore Back??

Well you are still in the honeymoon period LOL

Cheers Zev
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Follow Up By: Kiwi & "Mahindra" - Sunday, Nov 18, 2007 at 09:49

Sunday, Nov 18, 2007 at 09:49
yeah! I was gonna say that I had something along the lines of that..
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Reply By: Member - Kim M (VIC) - Saturday, Nov 17, 2007 at 22:55

Saturday, Nov 17, 2007 at 22:55
Dave

In a word, yes.

Regards

Kim
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Follow Up By: Dave B (NSW) - Sunday, Nov 18, 2007 at 10:41

Sunday, Nov 18, 2007 at 10:41
Thanks for that Kim, that's the way I am thinking at this stage.

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Reply By: Andrew(WA) - Saturday, Nov 17, 2007 at 23:45

Saturday, Nov 17, 2007 at 23:45
What about just putting Poly Air bags into the coils...or is that what you mean? sorry if it is.

If not, I can't recommend them highly enough. I had them in a Hilux and more recently a GU patrol.When towing a very heavily laden Van around, they were terrific.

Level ride, no bottoming out over railway Xings, stops body roll and all that. When you don't want them, just take out the pressure.

Hope that helps.

Cheers
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Follow Up By: Andrew(WA) - Saturday, Nov 17, 2007 at 23:49

Saturday, Nov 17, 2007 at 23:49
Sorry...if yours isn't a coil spring job..they do a kit for the leaf springs too..
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Follow Up By: Dave B (NSW) - Sunday, Nov 18, 2007 at 10:30

Sunday, Nov 18, 2007 at 10:30
Yeah it's leaf springs Andrew.

Thinking about Boss airbags.

Thanks for the feedback.

Dave
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Reply By: Member - Willie , Epping .Syd. - Sunday, Nov 18, 2007 at 06:33

Sunday, Nov 18, 2007 at 06:33
Dave ,

I put rear airbags on my 100 IFS a couple of years ago , and am very impressed with them .

I would put them on any 4WD I bought in future , as I carry hvy loads and tow over rough rods .

Willie
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Follow Up By: Dave B (NSW) - Sunday, Nov 18, 2007 at 10:50

Sunday, Nov 18, 2007 at 10:50
Willie, looking at your rig set-up, where do you put all that gear?
Talk about boy scouts and being prepared eh?

I don't intend to load up too much, but just get the car back to a level playing field.
It has it's nose up about an inch and a half when I am loaded, and I want to cure that without compromising the ride of the leaf springs when I haven't got the CT on.

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Reply By: Member - Paul S (VIC) - Sunday, Nov 18, 2007 at 08:16

Sunday, Nov 18, 2007 at 08:16
G'day Dave,

We have been travelling with our hilux towing a CT since July and find the polybags are excellent in maintaining vehicle height and stability on the blacktop and well graded tracks.

Our Kimberley has a large rear water tank and offsets towball load when full so the airbags can be used to maintain rear vehicle height no matter what the water level is or how much gear is in the lux's rear.

However, I removed them part way into a NP near Agnes Water Qld. The track had deep stormwater diverters graded into it and we and our gear were tossed around so much SWMBO spat the dummy.

The problem is lack of articulation with the polybags severely limiting axle travel. The vehicle's body is virtually fixed to the axle and you ride up and down every pothole and hump.

The simple answer would be to just deflate the bags when off-road, but the manufacturers stress the bags must have a minimum of 5 PSI pressure to avoid damaging them and even at that low pressure, they limit articulation.

As I already have ARB heavy duty rear springs fitted and always have lots of gear on board, I can manage without the bags. In my opinion you should consider heavier springs if you are going off-road and put up with a firmer ride when unladen. But if sealed or well graded roads is your plan, then go for the airbags.

Cheers,
Paul
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Follow Up By: Dave B (NSW) - Sunday, Nov 18, 2007 at 10:28

Sunday, Nov 18, 2007 at 10:28
Thanks Paul, I am aware that the airbags have to have a bit of pressure in them. I drive trucks with airbags and know some of the problems.
I want to redistribute some of the load inside the car towards the front.
I haven't taken the rear seats out yet, (3rd row yes), and utilise that space, so that's going to get more weight between the axles when I do that.

I don't want to load up too much weight, but I am aware of the slight handling differences since I put the drawers in.


Dave
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Reply By: MEMBER - Darian (SA) - Sunday, Nov 18, 2007 at 08:43

Sunday, Nov 18, 2007 at 08:43
As long as you don't ask them to cure true cases of 'overloading', they are great - designed to correct a 'modest sag' is my view - had them for a few years on the Jackaroo, when the rear was loaded up and we were towing the camper.
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Follow Up By: Dave B (NSW) - Sunday, Nov 18, 2007 at 10:39

Sunday, Nov 18, 2007 at 10:39
Darian, the front of the car has a slight lift when I am loaded, nothing dramatic, but I have noticed a difference since picking up the CT from new without much weight in it.
Thinking of Boss airbags, not Polyairs at this stage.
I am very much aware of overloading, where I work, I am grossing over 80 tonnes, so have a bit of an idea.

Dave

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