Thread: Articulation

Regarding the flexy type suspension set up one of the lads on here, Gekkos, put the Equipe4x4 stage 1 or 2 kit in his 110 and that flexes unbelievably well on the tracks I tried to follow him on.
I fitted the Equipe trailing arms and an +2 adjustable ball joint to my truck and the difference was amazing although I find now the front will need to be looked at as it is nowhere near as good.

Originally Posted by uninformed

No worries Bill, I think I miss read a little. A guy over on pirate, cut one of the bushes off the axle end of one RA for his rover and re welded it on so it was closer... He seemed to think it worked ok.

IIRC, that radius arm setup was made by KC and the landie was Bucks, but he eventually went to multi link. I have pics if wanted.

The so called superflex radius arms that are sold in Aus for Nissans improve articulation by the same means - Standard RA on side, closer bushes in radius arm on the other side.

Originally Posted by Bush65

IIRC, that radius arm setup was made by KC and the landie was Bucks, but he eventually went to multi link. I have pics if wanted.

The so called superflex radius arms that are sold in Aus for Nissans improve articulation by the same means - Standard RA on side, closer bushes in radius arm on the other side.

I have a hybrid that was given to me that I just discovered has a hinged radius arm on the left side with an extra pin to lock it in the normal position.
I haven't really played much with this vehicle as I prefer my portalled Landey, but 'unloading' on offcambers that this modification is often criticised for interests me. Does anyone have any links to discussion on other forums that define the problems encounted with these?
Wagoo.

there will be plenty on pirate, I would think some in the LR forum and some in the general if not ford forum...they were popular on Broncos over there untill they got wise to the instability...I think Sam aka stranerover has spoken about them some what on outerlimits as he ran one on a RR he had...

Bill, check this one out...one of many:

Home made wristed arm? - Pirate4x4.Com Bulletin Board

they also call them wristed arms over there....

in that thread they talk about the difference between the ford design and the LR design ... something about the chassis end sof the RA's on the fords being closer together makes it more "ok" than the rover....Sam mentions some pretty average handling faults offroad with his hinged arm.

My old hybrid has a rangie chassis. Has a 4 link rear. Longer trailing arms with rose joints at the chassis end and standard rover bushes on the axle. Has four shock absorbers on the rear. Two 380 mm travel shocks and standard ones mounted on the trailing arms. Limit straps are also fitted. Taller spring towers and longer springs. To keeps some sort of stability on road a rear sway bar has been fitted. This needs to be disconected any time you are on tracks. Front is a three link with panard arm. Longer radius arms with rose joints and rover bushes, same as the rear. Taller spring towers and longer springs. Only one set of 380 mm shock absorbers. All engineered. Found the rear springs too long and will be soon going to a shorter set with dislocation cones. Front spring are a good length. But need dislocation cones. Has excellent flex. In fact a tad to much. On side angles it want`s to lean way over. Rose joints are of a automotive grade used in racing cars. Found this out when I got the r.w.c Only problem with rose joint are they don`t last all that long and are not real cheap.
Cheers Hall

Interested in all your observations and proposals for the front of a RRC.
I setup the rear with x-eng arms and springs, using modified Terrafirma upper shock mounts, and +6" toyo front shocks on rear, plus long brake line. The rear works REALLY well now, so looking to improve the front, although vehicle now goes so much better, maybe I'll put up with following the front wheels and just let the rear do the articulation.

Photo of the resultant flex see SHOW US YOUR FLEX !!!

Originally Posted by uninformed

Bill, check this one out...one of many:

Home made wristed arm? - Pirate4x4.Com Bulletin Board

they also call them wristed arms over there....

in that thread they talk about the difference between the ford design and the LR design ... something about the chassis end sof the RA's on the fords being closer together makes it more "ok" than the rover....Sam mentions some pretty average handling faults offroad with his hinged arm.

Yeah, well I don't think I'll pull the pin and experiment with it in that case.But a variation on the theme that I saw on a Jeep many years ago was where, instead of the left hand Radius arm being bolted to brackets welded to the axle housing, it was bolted to a concentric sleeve that could rotate around the axle tube. All axle end bushings were replaced with sleeved down less compliant eurathane bushings, so that torque reaction under brakes and accelleration was still constrained by the beefed up brackets on the right hand side of the axle.I don't know for certain but I don't think this setup would produce the same instability that Sam mentioned when attempting to reverse out of a tippy situation.In fact, aside from reduced roll resistance this should behave like a normal radius arm arrangement with the exception that castor angle change with body roll is doubled, as it would be with a 'One Link' or torque tube(Unimog) setup.
Of course this modification if it worked satisfactorily is easier to do on the round seamless axle tubing of the Jeeps Dana front end than it would be to a LandRovers slightly eccentric seamed axle tube, but it is still do able and maybe less work than making a copy of Glen Dobbins X link.
Wagoo.