Pajero Owners Club of South Africa

Looks like an interesting product for you Gen 1 and Gen 2 Pajero guys.

I have only stumbled on the website, so don't know if it is all bull, but it seems to be working well. Just a bit pricey!!!

http://www.monsterbishi.com.au/

CATS

Flex lyk awesome maar bietjie duur ja. Kan byvoeg van een bush aan elke kant soveel meer flex maak. verstaan nie die konsep so lekker nie.

Yes it can. The concept of these trailing arms is identical to that of the Superflex leading arms available in Aus from Superior Engineering for the front of Cruisers/Patrols.

The reason why this works is because the type of suspension configuration (three link: two trailing arms with Panhard rod) used at the rear on the coil sprung Gen1/2 has very high roll stiffness. The trailing arms are pinned to the axle via two rubber bushes each and for any axle roll to occur relative to the chassis, these have to deflect. This is because the two trailing arm have to rotate in opposite directions relative to the axle for axle roll to happen (the two trailing arms perform a "donkey bite" on the axle housing). If the rubber bushes were replaced with steel spherical joints, the linkage would lock up and not allow axle roll at all. As softer and softer bushes are used, the axle is freed up to roll more and more, but there is a limit to how soft the rubber bushes can be and still take the loads. The other option is to add more bushes to the system in series to reduce the overall roll stiffness, as was done here. This could lead to massive gains in flex, compared to the very stiff original setup.

The thing to watch out for is the on-road handling. If a system such as this is not executed and tuned properly, the rear end might start to suffer from issues along the lines of those reported by some drivers of a well known Toyota wagon, that competes with the Pajero Sport...

Gen1/2 Pajeros are not known for good flex. At the rear end, the three link suspension is the reason for this (the Prado and Trooper both use multi-link rear suspension setups that flex way better), but the Pajeros are known for proper, predictable handling on any surface...