 | Home > Maintenance & Modifications > Rose jointed trailing arms??? |
 
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| diesel_jim Member Since: 13 Oct 2008 Location: hiding Posts: 6092   
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Rose jointed give better "freedom" to the suspension, and allow it to flex more...
Just take a look at a standard setup; the trailling arm sits at a downward angle (from the chassis down to the axle) when the vehicle is sat level... just look at the chassis bush, it's already being deformed. Once the axle drops, that stress on the bush is increased a lot. On my past 90 and current 110, i've put cranked trailling arms on, this means that the bush is sat neutral when the vehicle is level. and it gave me an instant extra inch of drop, just by the bush not binding up. The rose jointed ones are good for challenge trucks. Not sure how well they wear though, as there's no rubber, it's metal on metal (or maybe a thin coat of teflon) and apparently, i've never driven with them, there is more road noise/vibration transferred up through the vehicle, especially once they're worn and a bit slack. |
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27th Oct 2013 9:55am |
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| Laurie Member Since: 22 Feb 2008 Location: Sussex, England Posts: 2897  
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I believe the MSA has banned them from all forms of off-road competition in Britain.
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27th Oct 2013 10:06am |
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| big steve Member Since: 24 Dec 2009 Location: hertfordshire Posts: 2456 
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rose joints are great for off-road but useless on road once there worn the play drove me mad with mine i changed to johnny joints alot better design and still has the elastic side of a conventional bush
if your doing lots of roa work dont waste your time with rose joints steve 2015 2.2 tdci hardtop xs 3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P hybrid turbo in build -done ready to fit ashcroft atb in transfer box 6 speed auto in build |
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27th Oct 2013 10:40am |
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| Millsy94 Member Since: 06 Jun 2013 Location: Gloucestershire Posts: 91 
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Thank you all for being brutally honest, johney joints??? never heard of them may just go cranked arms, while im here for a 50mm lift do i want castor correction?
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31st Oct 2013 8:06pm |
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| millepet Member Since: 01 Apr 2013 Location: Wijnendale Posts: 33  
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definitively YES! I installed the 50mm lift, and adjusted the camber 5 months later. These were 5 months of dangerous driving without great feel, and a car aiming for the scenery. It came back to normal behaviour after installing the OME correcting bushes.
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21st Nov 2017 7:04pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8018  
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johnny joints or rose joints wouldnt suit a road vehicle as suggested above, we use Johnny joints on the race truck and get through them pretty quickly
50mm lift, cranked rear arms would help yes, caster correction - if its just a road vehicle then yes. if its on large tyres/off road most the time then dont worry about it. clocking swivels is another way of doing it. Cheers James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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23rd Nov 2017 6:38pm |
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