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30th August 2022, 07:03 AM
#1
Gvm upgrade
I’ve been reading and learning, but not posted anything for a while.
I’ve 2005 4.2td wagon, 2” lift, genuine bull bar, rear Raslar steel bar with spare wheel carrier and twin jerry holders and drawers in the rear.
Didn’t come as a surprise that GVM was almost reached.
I’ve since bought a 19’ caravan that weighs around 2550 (TBW = 250 kgs)
Now that’s outlined, I’ve recently had patrol GVM upgraded to 3550 kgs. Obviously with heavier coil springs.
My question is:
On original springs I had airbags that assisted when towing. Now that I have the higher rated springs -
Do I need the airbags, or should I trust the upgraded springs to do their job
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30th August 2022 07:03 AM
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30th August 2022, 07:37 AM
#2
Patrol Freak
I have the same upgraded 3550 kgs GVM with 300 kgs springs and heavily loaded rear drawers, etc. My van can get to 2.7t if I need to carry 200 kgs of water and I put 260 kgs on the towball.
I opted to keep my Polyairs when I upgraded the suspension because they were nearly new and I put them at 10 psi when towing even if I probably don't need to.
I also use a WDH (with anti sway cams) to move some of the weight to the front and that keeps it all pretty level. If I don't do the weight distribution, the front feels uncomfortably light.
John
2001 GUII TI 4500 - Now converted to TD42T auto with Nomad valve body
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30th August 2022, 08:14 AM
#3
Have you installed the BOSS Tower strengtheners or weld in units in the rear towers? I would recommend this with the airbags, a lot cheaper than repairing a torn mount.
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30th August 2022, 11:06 AM
#4
Patrol Guru
Originally Posted by
jff45
I also use a WDH (with anti sway cams) to move some of the weight to the front
How does it perform such weight transfer?
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30th August 2022, 11:34 AM
#5
Patrol Freak
Originally Posted by
BrazilianY60
How does it perform such weight transfer?
It works as designed with my setup. Not always recommended for some vehicles.
John
2001 GUII TI 4500 - Now converted to TD42T auto with Nomad valve body
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30th August 2022, 11:36 AM
#6
Patrol Freak
Originally Posted by
PeeBee
Have you installed the BOSS Tower strengtheners or weld in units in the rear towers? I would recommend this with the airbags, a lot cheaper than repairing a torn mount.
That would have been an essential mod even without the GVM upgrade. I used the Boss units for mine because the weld in stuff requires engineering.
John
2001 GUII TI 4500 - Now converted to TD42T auto with Nomad valve body
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The Following 2 Users Say Thank You to jff45 For This Useful Post:
MudRunnerTD (31st August 2022), PeeBee (30th August 2022)
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31st August 2022, 05:27 AM
#7
Gvm upgrade
Originally Posted by
jff45
I have the same upgraded 3550 kgs GVM with 300 kgs springs and heavily loaded rear drawers, etc. My van can get to 2.7t if I need to carry 200 kgs of water and I put 260 kgs on the towball.
I opted to keep my Polyairs when I upgraded the suspension because they were nearly new and I put them at 10 psi when towing even if I probably don't need to.
I also use a WDH (with anti sway cams) to move some of the weight to the front and that keeps it all pretty level. If I don't do the weight distribution, the front feels uncomfortably light.
Thanks jff45
I had some further conversations yesterday with someone who I trust and has knowledge in this area and he convinced me that the airbags are not required. So I decided against them.
As for steering I find very little change with van on, so no wdh used. The van and truck sit level and tows very well.
I now have a brand new set in their box unopened that I’ll sell
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31st August 2022, 05:29 AM
#8
Originally Posted by
PeeBee
Have you installed the BOSS Tower strengtheners or weld in units in the rear towers? I would recommend this with the airbags, a lot cheaper than repairing a torn mount.
Yes towers strengthened during upgrade
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The Following 2 Users Say Thank You to shakey55 For This Useful Post:
MudRunnerTD (31st August 2022), PeeBee (31st August 2022)
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31st August 2022, 09:24 AM
#9
Patrol Freak
Originally Posted by
shakey55
Thanks jff45
I had some further conversations yesterday with someone who I trust and has knowledge in this area and he convinced me that the airbags are not required. So I decided against them.
As for steering I find very little change with van on, so no wdh used. The van and truck sit level and tows very well.
I now have a brand new set in their box unopened that I’ll sell
Sent from my iPad using Tapatalk
Still might be worth getting it onto a weighbridge with all the weight on the rear to see how your rear axle loading is without the WDH.
It's good to have knowledgeable friends but the weighbridge will be more accurate.
John
2001 GUII TI 4500 - Now converted to TD42T auto with Nomad valve body
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The Following User Says Thank You to jff45 For This Useful Post:
DX grunt (3rd September 2022)
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3rd September 2022, 06:29 PM
#10
Bitumen Burner
Originally Posted by
jff45
Still might be worth getting it onto a weighbridge with all the weight on the rear to see how your rear axle loading is without the WDH.
It's good to have knowledgeable friends but the weighbridge will be more accurate.
So diplomatic. Well done, and thank you.
Winner of 'Best 4 x 4 ' at the 2017 Albany Agricultural Society Inc - Town n Country Ute Muster.
Ex Telstra - 2005, 4.2 TDi ute -with pod and more fruit than a grocery shop.
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The Following User Says Thank You to DX grunt For This Useful Post:
jff45 (4th September 2022)