Heavy duty radius arm options? - Defender Source
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  #1  
Old August 11th, 2012, 04:45 PM
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Charles Galpin
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Heavy duty radius arm options?

So what are the options available for heavy duty radius arms? Either a stock configuration or cranked to accommodate a lift, although I assume no-one bother making a HD one without the offset.

RTE, TF and ??

I ran my stock ones for 7-8 years without problems, but recently put on a set of cranked Terrafirma ones. I honestly didn't have a problem with the stock ones and didn't notice any difference going to the craned ones, but managed to bend one of them after a handful of outings (no change in wheeling venues or style). So I need to decide if I want to go back to stock or try something else.

Oh, If anyone happens to have a single TF cranked radius arm for sale, I'd be interested as well
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Old August 11th, 2012, 06:06 PM
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Jamie Austin
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i think you're getting confused with the terminology here....

"Radius arms" are on the front, available with a crank in them to alter (or try to re-set) the swivel castr angle to stop steering shimmy or stop very twitchy steering.

"Trailling arms" are the rear ones, often cranked to save wear on the triangle chassis bush. (i chaned mine to cranked and gained an extra 1" of axle drop alone, just by the bushing not binding)

I have Equippe trailling arms, no real reason, only because they came up at the right price. it's the second vehicle I've mounted them on, and they seem to work perfectly.
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Old August 11th, 2012, 06:14 PM
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I too have the TF front ones. They've held up to 3 years of abuse, but definitely seem a tad lightweight.
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Old August 11th, 2012, 06:30 PM
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Jamie Austin
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The early front ones arn't that much thinner... only 3 or 4mm, and that's at the end where the bushes push through (to allow the wider bushes to fit, which are supposed to improve road handling) the main "arm" is the same thickness on early & late versions.
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Old August 11th, 2012, 06:40 PM
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Charles Galpin
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Yes front radius arms. Perhaps "cranked" isn't the right term, but I mean castor corrected if that's wrong. But I honestly didn't notice any difference from stock (I have a 2" lift). Yes my stock ones seemed plenty beefy and held up for 7-8 years just fine.
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Old August 11th, 2012, 07:59 PM
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Quote:
Originally Posted by JSBriggs
Id throw the stock ones back in. 2" isnt that big of a deal. as long as your swivel preload is OK, then you don't need to worry about the death wobble.

-Jeff
X2 - I did change my trailing arms as I have seen those tweak and went with Rovingtracks as Keith always does me well. So rear arms I say yes to aftermarket, front keep stock unless your suspension is very lifted.
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Old August 11th, 2012, 08:33 PM
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Charles Galpin
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Yeah I have Keith's rears and love them. I only changed the front since everyone recommended doing it, and I was doing the bushings. Oh well.
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Old August 11th, 2012, 10:11 PM
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I've had the SG, RTE and TF side-by-side and hands down RTE are more beefier.

The only problem... I see it's the rubbing.
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Old August 12th, 2012, 02:06 PM
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What's the rubbing issue? The RTE ones look to be stock ones modified.
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Old August 12th, 2012, 02:47 PM
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Quote:
Originally Posted by JSBriggs View Post
Not he ones have. The ones from my 1980 RRC are thinner through out.

-Jeff

Ahhh... yes, apart from the early RRC ones which had smaller doughnut chassis-to-radius arm bushes as well... I forgot about those
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