Outer Limits 4x4 Board

I was just think about axle wrap bars and why they are needed. Is one needed when a spring over conversion is conducted to stop wreckin springs? and if so, what is stopping this axle wrap on 4wd's like the older hiluxes that come with spring over?

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hi buddy , i ran a 40 series with soa a while ago ,the biggest prob was the springs were pretty soft in the rear axle wrap was bad when u put the hammer down ,broke 3 pinon's and stuffed 4 tail shafts ,fitted a wrap bar no more problems,i would avice on gettin one made .i never had a problem with bendin springs but i have heard off others bendin them .

what i was asking was why are they needed for spring over conversions and not for the older hiluxes that come standard with spring over.

Once springs are changed or the setup is modified, when you're into it, the force of the wheels driving can twist the whole axle housing, hence the wrap bar

lj wrote:what i was asking was why are they needed for spring over conversions and not for the older hiluxes that come standard with spring over.

Because old luxes lack the power to twist the springs. Probably have pretty stiff springs, too.

Jason

chimpboy wrote:

lj wrote:what i was asking was why are they needed for spring over conversions and not for the older hiluxes that come standard with spring over.

Because old luxes lack the power to twist the springs. Probably have pretty stiff springs, too.

Jason

lack the power

so my zuk has power?

stock luxes do still have rap just not as much
they have stiffer springs then most soa cars(most soa cars have flat springs where luxes have a bit of arch)

i think most luxes have the rear shocks mounted on different sides of the axel (could be wrong) but that would aslo help iliminate a bit of wrap

hey guys u forget the force that any combustion engine creates! if u have enough torque to climb something then chances are there is a chace of axle rapp...and more so with moded soa conversions

just my 2c

old luxes were designed spoa, so the spring rate, shape and size has that in mind. they are very flat and stiff, but if fitted underneath, they may have arched them more?
On a car not designed spoa, there is greater force on the same spring, ie more torque because of the lever effect, the longer the lever, the easier it is to force stuff.
and if spring gives too much, uni joints etc could go way out of their comfort zone. If spoa conversion is what you want, then fitting a wrap bar be wise, or stiffer springs, with lack of travel, christover

Stock tyres and open rear diff will cause minimal wrap, throw in a locker and bolt on some bigger tyres thats when the wrapin begins.

Don't pay me out about this question but what is axle wrap and how do those axle wrap bars work? Don't quite understand.

searsy989 wrote:Don't pay me out about this question but what is axle wrap and how do those axle wrap bars work? Don't quite understand.

Well you know those guy’s who get down and get up again, it ain’t that. It’s the old Newtons law, force in one direction will have an equal and opposite force in the other direction, hence your wheels are driving one way and your diff/housing is trying to go the other way. The lower the gear the more torque the longer/softer the springs all leads to more diff wind up. So you fit wrap rods, tramp rod, ladder bars 4or5 link suspension to stop this torque re-action. Hope this helps.

Hiluxes have a top torque rod on front. flat springs with bias in rate along the spring and use offset rear shocks all to help stop wrap.

Bazzle

thanks guys

searsy989 wrote:Don't pay me out about this question but what is axle wrap and how do those axle wrap bars work? Don't quite understand.

Wheels turn because there is a force between them and the outer part of the axle... but the same force is working on the outer part of the axle, so if there's heaps of power, or the springs are too weak, or the tyres are glued to the ground, then the axle turns and the wheels don't (or really, they each turn x%).

When the axle turns, the diff does too, and this can cause tailshaft angles to go crazy, universal joints to bind up, springs to get distorted...


Jason

I see now. Thanks alot!

chimpboy wrote:

searsy989 wrote:Don't pay me out about this question but what is axle wrap and how do those axle wrap bars work? Don't quite understand.

Wheels turn because there is a force between them and the outer part of the axle... but the same force is working on the outer part of the axle, so if there's heaps of power, or the springs are too weak, or the tyres are glued to the ground, then the axle turns and the wheels don't (or really, they each turn x%).

When the axle turns, the diff does too, and this can cause tailshaft angles to go crazy, universal joints to bind up, springs to get distorted...


Jason

W.T.F??????

Yeah mate wrote:

chimpboy wrote:

searsy989 wrote:Don't pay me out about this question but what is axle wrap and how do those axle wrap bars work? Don't quite understand.

Wheels turn because there is a force between them and the outer part of the axle... but the same force is working on the outer part of the axle, so if there's heaps of power, or the springs are too weak, or the tyres are glued to the ground, then the axle turns and the wheels don't (or really, they each turn x%).

When the axle turns, the diff does too, and this can cause tailshaft angles to go crazy, universal joints to bind up, springs to get distorted...


Jason

W.T.F??????

i didnt see a problem with what he said. was the same as what you said in different words.

Yeah mate wrote:

chimpboy wrote:

searsy989 wrote:Don't pay me out about this question but what is axle wrap and how do those axle wrap bars work? Don't quite understand.

Wheels turn because there is a force between them and the outer part of the axle... but the same force is working on the outer part of the axle, so if there's heaps of power, or the springs are too weak, or the tyres are glued to the ground, then the axle turns and the wheels don't (or really, they each turn x%).

When the axle turns, the diff does too, and this can cause tailshaft angles to go crazy, universal joints to bind up, springs to get distorted...


Jason

W.T.F??????

Well, it's easier with a diagram...