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Suspension lift an 30" Tyres
Moderator: Tiny
Suspension lift an 30" Tyres
I just went out to give the suspension and tyres a test run. The capability in boggy sand has improved big time hey, from low range crawling to high speed runs she just laps it up.
I had an extra wrap leaf fitted to to the rear which lifted it 3" from the sagged origional suspension which should support the main leaf pretty well. They only wound up the torsion bars 35 mm though so she sits a bit higher in the back, the suspension guys said that regulations stated that to be the maximum allowable lift in th front. I guess when the back is loaded up with the camping gear she will ride more level. The best thing about the wrap leaf is that the rear end still remained quite soft so i still have good articulation.
The only problem is with the front only beeing 35mm higher the 30" AT's i had fitted rub on the mud flap retaining bolts when bouncing or turning on rough terrain.
Can i just wind her up a bit more or should i remove the mud flaps?
I had an extra wrap leaf fitted to to the rear which lifted it 3" from the sagged origional suspension which should support the main leaf pretty well. They only wound up the torsion bars 35 mm though so she sits a bit higher in the back, the suspension guys said that regulations stated that to be the maximum allowable lift in th front. I guess when the back is loaded up with the camping gear she will ride more level. The best thing about the wrap leaf is that the rear end still remained quite soft so i still have good articulation.
The only problem is with the front only beeing 35mm higher the 30" AT's i had fitted rub on the mud flap retaining bolts when bouncing or turning on rough terrain.
Can i just wind her up a bit more or should i remove the mud flaps?
I dunno where these guys get the 35mm figure from.... As far as I' aware, there isn't any "limit" on how far you're allowed to wind up torsion bars...maybe post a question up in Tech discussion on this board?
There are a couple of things you can do to stop your new tyres rubbing. First is to wind up the torsion bars a little further. It's a REALLY easy job, just make sure you do it on a flat level surface. Prolly best way to get front to the right height is to measure the height under your door sill as close to the rear wheel as possible, then wind up the front to about the same. Once she bounces up and down a bit, it should settle to be SLIGHTLY lower in the front than the rear, which is how you want it...about 1/4 to 1/2 an inch.
Mudflaps: leave them on until you've wound up the front a bit more, then see how it goes. You can replace the bolts/screws with something more flush, and you may find it eliminates rubbing. If it still rubs, then take the flaps off and you should have no rubbing at all with 30" tyres.
If you're unsure of how to wind the bars up, you'll find heaps of threads here explaining how to do it.
Good luck
There are a couple of things you can do to stop your new tyres rubbing. First is to wind up the torsion bars a little further. It's a REALLY easy job, just make sure you do it on a flat level surface. Prolly best way to get front to the right height is to measure the height under your door sill as close to the rear wheel as possible, then wind up the front to about the same. Once she bounces up and down a bit, it should settle to be SLIGHTLY lower in the front than the rear, which is how you want it...about 1/4 to 1/2 an inch.
Mudflaps: leave them on until you've wound up the front a bit more, then see how it goes. You can replace the bolts/screws with something more flush, and you may find it eliminates rubbing. If it still rubs, then take the flaps off and you should have no rubbing at all with 30" tyres.
If you're unsure of how to wind the bars up, you'll find heaps of threads here explaining how to do it.
Good luck
bru21 wrote:What happens in goat, stays in goat!
The 35mm max lift probably comes from their interpretation of ADR's. IIRC the max lift figure has to do with not changing the suspension travel in either direction by more than a certain percentage?
If you wind the torsion bars up too far you WILL limit downwards movement of the front wheels and run out of suspension travel- which can be dangerous.
If you are going to wind the front up, then jack up the front of the vehicle first until the wheels are nearly off the ground- it will save a lot of strain on the components when you wind them up. They also take a while to settle to their final resting spot, so be prepared to have a few goes with decent drives in between before everything is settled. (And don't forget to get a wheel alignment done afterwards.)
If you wind the torsion bars up too far you WILL limit downwards movement of the front wheels and run out of suspension travel- which can be dangerous.
If you are going to wind the front up, then jack up the front of the vehicle first until the wheels are nearly off the ground- it will save a lot of strain on the components when you wind them up. They also take a while to settle to their final resting spot, so be prepared to have a few goes with decent drives in between before everything is settled. (And don't forget to get a wheel alignment done afterwards.)
David
I wound up the torsion bars a slight amount just two full turns on both sides.
After taking her for a good off road run she is sitting level front and back but i still get slight rubbing on the mud gaurds when turning on rough terrain and when landing jumps off bumps in the tracks. I guess i could try removing the mud flaps but then the paint work would suffer stone chips etc. I will look into making some custom rally style mud flaps up.
Allthough she rubs occasionally the total turn around in sand handling is amazing. Even in pretty deep ruts where i used to bottom out she just eats it up. The extra clearance and handling far out ways the minor rubbing problem.
After taking her for a good off road run she is sitting level front and back but i still get slight rubbing on the mud gaurds when turning on rough terrain and when landing jumps off bumps in the tracks. I guess i could try removing the mud flaps but then the paint work would suffer stone chips etc. I will look into making some custom rally style mud flaps up.
Allthough she rubs occasionally the total turn around in sand handling is amazing. Even in pretty deep ruts where i used to bottom out she just eats it up. The extra clearance and handling far out ways the minor rubbing problem.
I chased up quotes from all sorts of places before i decided to go with one of the cheapest options.
A place called West Coast Suspension quoted an extra support wrap leaf and two longer travel shocks in the rear with two new shocks in the front and torsion bars wound up all fitted for just over $800.
I am really pleased with the wrap leaf as it has lifted the rear a fair amount while not making it too rigid, which has preserved the articulation and comfort really well.
West coast manufactures thier own springs, torsion bars, leaves and pretty sure the shocks too.
http://www.westcoastsuspension.com.au
I am not sure where you are situated mate but check em out these boys know what its all about and can give you a few options. They also do a similar thing as the tough dog leaf set up and torsion bars etc.
A place called West Coast Suspension quoted an extra support wrap leaf and two longer travel shocks in the rear with two new shocks in the front and torsion bars wound up all fitted for just over $800.
I am really pleased with the wrap leaf as it has lifted the rear a fair amount while not making it too rigid, which has preserved the articulation and comfort really well.
West coast manufactures thier own springs, torsion bars, leaves and pretty sure the shocks too.
http://www.westcoastsuspension.com.au
I am not sure where you are situated mate but check em out these boys know what its all about and can give you a few options. They also do a similar thing as the tough dog leaf set up and torsion bars etc.
30" tyres and mudflaps
Hi all,
I've had 235/75 15's fitted which I think are near as dammit 30" - with no lift. The bolts on the mudflaps were close but not rubbing, I just bent the mudflap bracket backwards away from the tyres carefully to give adequate clearance, job done.
Jon.
I've had 235/75 15's fitted which I think are near as dammit 30" - with no lift. The bolts on the mudflaps were close but not rubbing, I just bent the mudflap bracket backwards away from the tyres carefully to give adequate clearance, job done.
Jon.
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