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Opinions please.
Posted: Sat Feb 03, 2007 7:18 pm
by disco95
I already have an opinion on this. I'd just like to know what people with more experience than I may think.
My question is....rear driveshaft, is a shaft with a uni at the rear end better than a shaft with a large rubber disc?
Posted: Sat Feb 03, 2007 8:20 pm
by Reddo
Yup, cause the roto flex coupling is not as strong, and perishes over time and fails. Good for the burbs, but no good for the bush. Ditch it
Posted: Sat Feb 03, 2007 11:56 pm
by Slunnie
I think it depends.
If you're running a standard rear axle, then the rubber coupling is better to have, as it absorbs a lot of the impact when things get exciting and often gives first. If you're running HD axles and diffs, then it doesn't matter. It will absorb some vibration better than what a uni does.
This said, I run a uni-uni rear shaft because its stronger and more reliable.
Posted: Sun Feb 04, 2007 12:04 am
by Slunnie
Reddo wrote:Yup, cause the roto flex coupling is not as strong, and perishes over time and fails. Good for the burbs, but no good for the bush. Ditch it
I surveyed the Austrialian Disco2 owners yahoo group (D2Au) regarding rotoflex failures using an optional tick a box online survey, and in a nutshell, the end result led me to believe that rotoflex failure could not be related to lift, age and km's travelled, but there was a relationship between tyre type and size and rotoflex failure. Based on this, it seems that people that run high traction tyres (MT+) which are oversized are significantly more prone to rotoflex failure. It's open to debate whether that is caused by the general driving technique of the demographic that have those modifications, or if it relates to the available traction and peak forces generated by those tyres and I could not conclusively say, though I would guess that it's a combination of both.
Also bear in mind that the D2 generates minimal flex in the rotoflex with lift and suspension cycling, unlike the other Rovers, so this may not necessarily apply to the D1.
Posted: Wed Feb 07, 2007 7:28 pm
by disco95
Reddo wrote:Yup, cause the roto flex coupling is not as strong, and perishes over time and fails. Good for the burbs, but no good for the bush. Ditch it
So far the coupling's held up pretty well.
On the other hand, I've got a double cardan shaft sitting there. All it needs is a couple of unis.