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Sharky

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Reply with quote  #1 
Hi all,

I'm new to the 4WD wheel suspension (of the vehicle) so relevant help provided is appreciated. My rear suspension of my 2013 Pajero sinks once I hook up the tow bar of the commander. As a result of this, the Pajero is not level with the commander. The pic of Pajero and the UEV490 of this forum main page is levelling perfectly and mine is not.

I am not a serious off roader for now so not too sure what is best for the 4WD suspension. I have been told about using 'air bags' and 'gas strut suspension/shockies' for the rear of 4WD. I have no idea between these two options. suspension.jpg 
Any suggestions/ideas etc?

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spill

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Reply with quote  #2 
There's any number of things you could try, from the simplest, flip the shank (tongue), this will lift the front a couple of inches. But doesnt resolve rear suspension sag.
ARB and others will provide a 2 inch lift via spring replacement.
Boss and others can supply airbags for around $500 plus fitting.

Not being an expert I took advice from ARB who replaced springs/shocks providing a 2 inch lift and harder ride.
I added Boss airbags on a whim and believe it "feels" much better, by this I mean I hardly notice I'm towing, until I hit a hill.

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Toyota Hilux SR5 - Diesel Auto - UEV490 Evolution (2013)
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SVX17

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Reply with quote  #3 
The best option IMO would be to fit "Poly-Air" bags.

They will with out doubt solve the sagging issue and the air pressure can be reduced to maintain the "ride" of the tow vehicle when your not towing.

Approximate cost would be between $350 to $500 and if your handy with a spanner an easy fit up.
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Basel

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Reply with quote  #4 
Hi

In my previous car (Prado) I only had airbags and it worked perfectly. When I got my 200 series, the advice I was given was that you don't want the airbags carrying the full load, so they recommended a suspension upgrade and airbags.

I would start with airbags as a first step they may be able to transfer them if you upgrade suspension later.

Cheers
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Sharky

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Reply with quote  #5 
Thanks all for input/suggestion. I will visiting ARB on Sat.

S
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spill

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Reply with quote  #6 
An additional source of info (experiences) on this might be found in the Pajero forum http://www2.pajeroclub.com.au/forum/

Always worth a poke around to help you get to your solution ...

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Toyota Hilux SR5 - Diesel Auto - UEV490 Evolution (2013)
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muttley

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Reply with quote  #7 
Hi
I had the same issue with my 2012 Pajero. I went to my local ARB who said that Pajero's were a bit soft from factory. We ended up fitting a full Old Man Emu system front and back as well as air bags in the rear for, just in case. I am glad i went with the air bags as i can adjust the ride depending on the amount of extra gear i have in the back. It made a real deference in the ride and handling. I went with lowest height option which raised the wagon 1" higher than factory height. As i do not do a lot off full of road this height was a good compromise.
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Sharky

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Reply with quote  #8 
Hi Muttley,

ARB recommended the following specs for my vehicle and Commander. Front spring to 50Kg and strut sport, rear spring medium load and nitrocharger sport. These are all Old Man Emu entry level suspension. Front is estimated to have a lift of 35mm, rear at 40mm. What is your specs?

S
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muttley

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Reply with quote  #9 
Hi Sharky
I have just checked the paper work from ARB. The before height was Rear-765mm Front-740mm. When the gear was fitted it measured Rear-800mm Front-810mm. Then after the 500km inspection and check it settled at Rear-795mm Front 795mm. I cant remember what the weight category was but the part numbers were: Front shocks-90006 and springs-2915. Rear shocks-60019 and springs-2918. The air bags were-CR5073. ARB also organised a 4 wheel -wheel aliment. The whole job was around $2300.00 I do remember both the front struts and rear shocks were nitrocharge. The height was measured from ground level to the top of the wheel arch. I hope this is of some help.
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Thomo

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Reply with quote  #10 
That's my Pajero in the cover photo. As with all Pajeros they have issues with the rear of the car keeping level when hitched to a camper. We did reveres the hitch but also have the H/D 300 kg rated springs and Nitro Charger Sport shocks by OME and poly Airs. After over 2 years of use the car is no longer level so it's time to replace the rear springs soon.

My advise is go the same springs shocks and air bags and this will be fine but beware of bending your tow hitch tongue if heading off road as I have done that on 2 occasions now have a H/D tow hitch. There is lots I can tell you about towing a 490 with a pajero as we have been on the road for over 12 months with this set up and there is a few issues...let me know and will call you if you like...
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Sharky

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Reply with quote  #11 
Hi Muttley,

Your front suspension spring is rated from 51kg to 100kg. Rear is spring constant at 200kg (mine is at medium load which is minus one less than yours). When you fully loaded up 490, did it get level (estimation) with your vehicle last time?

Thanks for the info Muttley and Thomo.

S
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muttley

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Reply with quote  #12 
Hi Sharky
I have a commander and it now hitches all most spot on. With gear in the back of the car and the trailer loaded for a week away i also add about 20 psi in the bags. The rear water tank was empty and maybe if i had filled it i may not have had to add air. I will only forget to check the water once. (Maybe) [smile].
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filbee56

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Reply with quote  #13 
Sharky, what did you end up doing about the rear sag on your Pajero. 

When I owned my Pajero, I fitted Coil-Rite airbags to bring the bum up because our caravan towball weight was around 210kg. They were such and easy DIY. Purchased from American Truck Supplies in the USA for a fraction of the Australian cost.

The Coil-Rite air bags greatly assisted with towing, and when we had the rear of the Pajero packed to the hilt for camping.
Cheers, Filbee56

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Sharky

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Reply with quote  #14 
Hi Filbee56,

I used Old Man Emu (OME) gas and coil suspensions from ARB. The sag is not as bad before the change. If I were to turn the row bar upside down, the Pajero and Commander will level perfectly with OME. However, I have to use the recommended way (see red line in above pic near tow bar and spare wheel at rear) as the Pajero will make unhitching/hitching difficult if the tow bar is installed upside down (unless trailer and Pajero are parked perfectly every time). I have a lot to improve in my parking. [smile]

S
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Sandstorm76

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Reply with quote  #15 
I would go for a medium spring and poly airbags.
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