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Tech & Fab
ARB D60 o-rings
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<blockquote data-quote="TBItoy" data-source="post: 762053" data-attributes="member: 1384"><p>don't measure the o-ring itself, measure the space it fits in/over.</p><p></p><p>Do you know what model your ARB is? (it's probably an rd35/36 if it's old) I google searched "old ARB Dana 60 o ring" and it brought up this ARB manual:</p><p>[URL unfurl="true"]https://www.arb.com.au/assets/air-lockers/2-RD35.pdf[/URL]</p><p></p><p>which calls out "For replacement O-rings use only BS136 Viton 75"</p><p>Which means a -136 size O ring, made of Viton (the "special" material), 75 durometer.</p><p></p><p>Here is what mcmaster has with those specs, o-rings and x-rings.</p><p>[URL unfurl="true"]https://www.mcmaster.com/o-rings/dash-number~136/hardness~durometer-75a/[/URL]</p><p></p><p></p><p></p><p>If it's the newer "3 digit" part number RD166 etc, then it uses a larger -140 Viton 75 o-ring.</p></blockquote><p></p>
[QUOTE="TBItoy, post: 762053, member: 1384"] don't measure the o-ring itself, measure the space it fits in/over. Do you know what model your ARB is? (it's probably an rd35/36 if it's old) I google searched "old ARB Dana 60 o ring" and it brought up this ARB manual: [URL unfurl="true"]https://www.arb.com.au/assets/air-lockers/2-RD35.pdf[/URL] which calls out "For replacement O-rings use only BS136 Viton 75" Which means a -136 size O ring, made of Viton (the "special" material), 75 durometer. Here is what mcmaster has with those specs, o-rings and x-rings. [URL unfurl="true"]https://www.mcmaster.com/o-rings/dash-number~136/hardness~durometer-75a/[/URL] If it's the newer "3 digit" part number RD166 etc, then it uses a larger -140 Viton 75 o-ring. [/QUOTE]
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