4x4 Action Group

This Hilux is now as capable as a standard Patrol (pre Y62):

https://youtu.be/VPyUe8v3ZHc

Nice video.

His broom theory is flawed. The front diff is not being pushed like in a broom it drives it self. Traction front have nothing to do with diff angle. The tyre contact Area does and like in this case lockers.

The angle will influence Castor which will effect handling but at trail speeds will have a rare effect



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Thanks for sharing and yip we sometimes want to over complicate and overload

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grips wrote: ↑

Thu Nov 07, 2019 8:17 pm

Nice video.

His broom theory is flawed. The front diff is not being pushed like in a broom it drives it self. Traction front have nothing to do with diff angle. The tyre contact Area does and like in this case lockers.

The angle will influence Castor which will effect handling but at trail speeds will have a rare effect

Sent from my F5321 using Tapatalk

Agree with you, but at just 40Km/h, and angle of more than 7Deg, can cause problems if you don't have a tight enough sway bar. If you have one side of your suspension compressed by a bump, the diff starts "walking", inducing bump steer per individual wheel as the diff actually changes direction under the car, alternating form one wheel/side, to the other. Obviously also depends on your lift, castor, and length of your arms to start off with. You end up with what feels like a slow motion death wobble. It transmits that and pulls the body from side to side, especially if you have a high roll center.

So, unless you have a trailer queen, if you are doing anything resembling higher speeds, on tar or gravel, the approach of flatter and longer arms, is perfect. Doing a "over the axle" radias arm, has the same affect/result, as doing a SOA on a leaf spring. Gives you the lift without changing the geometry.

I really like his build. Fairly simple, but effective. The entire minimalist approach makes sense for a vehicle that has to work the way these guys expect it to to. This Toyota is way past the point to be included in a brand bashing discussion. For any person who truly appreciates a good offroad build, if it be a over lander, or a trail vehicle, a rock crawler, a mud bogger, or dune slayer, that could just as well have been a Mahindra, Fortuna, Hummer, or Disco.

I LIKE, well done

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Agree with you, but at just 40Km/h, and angle of more than 7Deg, can cause problems if you don't have a tight enough sway bar.

I have owned several leaf spring SFA 4X4`s. Toyota Hilux , FJ45 Cruiser, Ford F250 to name a few none of them came with factory fitted sways bars they had no bump steer and had no bad handling. Only the G60 Patrols came with factory sway bars. They had no flex and a enormous hard ride. I removed the sway bars on all of them to better the ride could not say handling were effected. Bump steer usually develop with a huge lift and wheel travel were the steering link is forced at an angle due to the lift. If you do a high steer mod ending with a steering link parallel bump steer will be almost none existent.

Doing a "over the axle" radias arm, has the same affect/result, as doing a SOA on a leaf spring. Gives you the lift without changing the geometry.

[On a coil sprung suspension lift is determined by coil length. The radius arm mount over or under won`t create any lift.

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grips wrote: ↑

Fri Nov 08, 2019 5:24 pm

Agree with you, but at just 40Km/h, and angle of more than 7Deg, can cause problems if you don't have a tight enough sway bar.

I have owned several leaf spring SFA 4X4`s. Toyota Hilux , FJ45 Cruiser, Ford F250 to name a few none of them came with factory fitted sways bars they had no bump steer and had no bad handling. Only the G60 Patrols came with factory sway bars. They had no flex and a enormous hard ride. I removed the sway bars on all of them to better the ride could not say handling were effected. Bump steer usually develop with a huge lift and wheel travel were the steering link is forced at an angle due to the lift. If you do a high steer mod ending with a steering link parallel bump steer will be almost none existent.
In the case of this Hilux in question, we are not talking about a leaf sprung vehicle, and my comment refers to coil springs and radias arms.

Doing a "over the axle" radias arm, has the same affect/result, as doing a SOA on a leaf spring. Gives you the ABILITY to lift without changing the geometry.

[On a coil sprung suspension lift is determined by coil length. The radius arm mount over or under won`t create any lift.
True yes, sorry, I sometimes do not express myself clearly. I have added the words that were missing in my sentence.
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Sorry if I misled anybody, and alluded to imply that radias arms dictate the ride height of the vehicle.

What I attempted to say, was, that by dropping the axle under the radias arm (and with longer coils, or dropped coil buckets), you maintain your radias arm geometry/angle, but with the 4'-5' lift of the chassis in relation to the axle. Obviously you need to take your steering arm and Panhard into consideration, to maintain identical length and angle relative to each other, to prevent bump steer.

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Dit is nou `n smart Buggy.

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