I have Dr Diff axels with green bearing on the 68 Barracuda. Looking for replacement o rings for the green bearing I have found numerous internet threads where, when looking for those o rings the response was, ' just go to NAPA they have a bunch of Orings, just match up a set, or just go to your local hardware store...'
I never was an ORing Engineer, so I did some measuring, then went looking for how Orings are sized.
What I found is Orings are largely grouped together by a 'Dash' size. And the Dash size that matches to the Orings that were originally on the Dr Diff Green bearings is a Dash 146.
So you can google Dash 146 O Ring and get a large selection of O rings in the correct size in a variety of materials from several different vendors.
I went with Buna N material, as that material is listed as having good resistance to hydraulic oils, I also went with medium hardness. Using only human tactile, the feel, flexibility, color, gloss of the replacement Orings are identical to the original Orings.
I bought a pouch 10 of the replacement Orings at Granger for $2.95 with tax it came to $3.16
The Granger part number is 41UK44
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