Member - AndrewPatrol replied:

Wouldn't go without 'em. Had two sets now in different vehicles. Search this site for more info, there's heaps.

markline replied:

thanks very much Andrew

Phil G replied:

Mark,

I also have used polyairs on the Prado for 4 years. They are not a replacement for inadequate springs, but add a bit of adjustability for when you're loaded up.

Best mod for any Prado is to fit heavy duty springs with a bit of lift all round. Makes a big difference. Factory shocks are OK. I only put extra air into the Polyairs when I'm fully loaded for a bush trip and they help keep the vehicle level. I recently did the Madigan Line where I needed to carry 240 litres of diesel and 140 litres of water plus everything else, and the combination of the HD springs, polyairs and factory shocks worked fine.

You'll find lots of Prado info on the other Prado sites:
90series group
90scool_aus group
LCOOL tech section

Cheers
Phil

GO_OFFROAD replied:

I think the key with this type of spring assist is to load the car first, so you have an idea of how overloaded you are, before inflating the bags.

They arent a replacement for common sense when loading the car for a trip.

Of Mice & Men replied:

Hi Markline,

Have you thought about another brand called Firestone Coilrites. Same thing as Polyairs just different color. I recently installed a set into my 80 series. Took about half a day on the weekend with no special tools. Comes complete with full instructions. Was pretty easy.
When we take the camper trailer away, I pump the coilrites up until the car is level, normally about 20-25psi ( thats with about 100kg's on the tow ball plus other gear in back of vehicle ), & the good thing is that when you get to your destination, & the car is empty, you let the air out of your air bags to do your 4wdriving & you have comfartable springs.
When I researched this site before I got mine I found only good comments for both brands the Coilrites & the Polyairs, but the reason I went for the Coilrites was because you can have them shipped from the states for about half the cost as what they can be purchased here ( even with the added freight ). Plenty of other people on this forum have done the same thing with no dramas, if your interested the company is Michigan Truck Springs & there website is trucksprings.com

Hope This Helps,
OM&M

markline replied:

thanks very much om&m i will check it out

cheers

Wizard1 replied:

Also have a 90 Series. The standard springs were going south after 45000 km. The vehicle was 50mm below standardride with drawers and recovery gear, not even full fuel payload.

When packed up for camping and boat towing the arse dropped something fierce.

Fitted standard height heavy duty TJM rear springs and polyairs. Just the springs lifted the rear, let alone inflating the Polyairs

With a caravan attached (with Reese WDH), generator, Waeco fridge, 50 litres of water, spare tyres on the roof the back hardly dropped.

I rate them.

Wizard
Darwin NT
Prado TD