Toyota tray back 79 series 2006 suspension

Submitted: Monday, May 16, 2011 at 20:57

Diane F

I need advice please. I own a trayback Toyota landcruiser 79 series. It has poly airbags fitted, originally to help carry the slideon. I no longer have the slide on and am looking at buying a 22foot caravan. My question is do I keep the air bags or upgrade the suspension. Will an upgraded suspension help also with a more comfortable ride as I am now an older female driver. If you own a vehicle the same as mine I would appreciate knowing what you have done in this regards. Thank you
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Reply By: Member - Anthony W Adelaide - Monday, May 16, 2011 at 21:29

Monday, May 16, 2011 at 21:29
I have a VDJ79 with a 600kg upgrade. I have a few tools etc on board most of the time, but it is a fairly hard ride without a bit of weight on it. Depending how much tow ball weight you have you may be better off with polyairs or just extended shakles to account for the drop in height, with the standard springs.

The towball weight of a big van may only be 100 to 200kgs? Maybe you have other stuff on the tray to allow for?

Cheers, Wooly
AnswerID: 454501

Reply By: Member - bungarra (WA) - Tuesday, May 17, 2011 at 10:57

Tuesday, May 17, 2011 at 10:57
I have a VJD79 with the suspension upgrade of 600kg.

I also have BOSS air bags to keep the ride height level when towing our offroad 6.2m 'van

The ride is firm but not harsh when not towing but I am around 3700GVM when not towing....

Basicaly ugrading the suspension will give a firmer ride but not necessarily more comfortable than the present ride you have...

It is about a trade off between a safe load on a suspension upgrade designed for that load as against a softer and perhaps less safe ride if you are overloaded or approaching full load pre upgrade
Life is a journey, it is not how we fall down, it is how we get up.
VKS 1341
AnswerID: 454544

Reply By: Member - Phil G (SA) - Tuesday, May 17, 2011 at 11:23

Tuesday, May 17, 2011 at 11:23
I have the Boss airbags and ARB 600kg leaf rear suspension.
I'd leave yours alone and see how it is. If you find its too hard with no weight on board, then reduce your tyre pressures to say 28 psi and see if that's better. With no weight, you don't need higher pressures.
2012 VDJ200 Landcruiser
2003 TVan
2015 New Age MR16E Deluxe "Offroad" caravan
2008 VW Tiguan TDi
AnswerID: 454548

Reply By: get outmore - Tuesday, May 17, 2011 at 15:41

Tuesday, May 17, 2011 at 15:41
the standard springs really are quite woefull Ive driven plenty of new ones and they dont keep the factory springs for long before replacing them

that generally adds about 2 inches or so of lift because it seems the factory ones come out factory sagged
the first thing i noticed when going from a 75 to a 79 for work was with the same load the 79 sagged like a coil sprung patrol
they may well be comfortable enough but upgraded springs will improve things alot
AnswerID: 454579

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