I had the same issue, I have bilsteins with the heavy duty dobosin coils 2 inch lift, the front was too harsh, when I went over bumps the shutter was intolerable, since I don't envisage getting a winch I changed the front dobisons to a lighter dobinson spring, and to maintain the same ride height for the front they installed rubbber or neoprene spacers, as soon as I drove out I noticed a big difference, it rode the humps and bumps alot nicer and didn't affect handling. I kept the heavy duty at the back as I have a aux tank and tow a jetski and can load up a little when going on holidays, but even when unladden the rear wasn't an issue with ride comfort. A shout out to Ultimate Suspension at Ingleburn who did the work for me.
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I'm too hard in front, should I touch it now or later?
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2011 30th Anniversary NT, TME Tuned, 2 inch Billies/Dobs lift HD rear/MD front. Arb Deluxe Bar, Mitsi Tow bar, LRA Aux tank, Clearview Mirrors, Tekonsha Electric Brake Controller, iDrive, Manta 3 inch Turbo back Exhaust, Provent Catch Can, Pirelli Scorpion AT Plus 265/70/17 all corners plus spare, 9 inch iluminators, 7 inch Stedi reverse flood light, Rhino Rack, Kings Side Awning.
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Originally posted by twisted32 View Post
What specs are you after?
CFR-90HD Free length 330mm, 816lbs/in
CFR-90EHD Free length 330mm, 966lbs/in
Well that is the info I was able to get out of Lovells a few months ago.
816lbs/in = 14.57/kg/mm, which would place the CFR-90HD at the firmer end of the options - 1kg/mm firmer than the KCFR-34HD!
OJ - do these figures match the info you have on these springs?NX GLX manual, T13, XD9000, Koni RAID, Ultragauge, ISI carrier, pioneer platform, Lithium auxillary
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