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Discussion Starter · #1 ·
I’m having a bit of an issue figuring out what bushing should be used in a 1965 cb450 swingarm at the rear where the shocks mount to the swingarm.
Cms diagrams don’t show a bushing of any kind. The one that’s available for later models is about 2mm to large.
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My 4-speed parts book shows part number 40548-268-000, and a 10x35 bolt that fits through it. It covers frame number 1000001 to 1999999, if yours fits into that range.
It shows the same for K3-K5, so yours must be older than what I have, if its OD has to be 20mm instead of 22. Are you certain the outer shell of the bushing is not in the swingarm still? That would make up just about 2mm.
 

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Discussion Starter · #3 ·
looking at this picture you might be right. I don’t remember taking the bushing out. I think the powdercoating guy must’ve done it and just knocked out the rubber part.
I give this a shot. Gonna be a pain to get out.
if
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Push the old bushing out with the new bushing. Use a press, bench vise, or even a large C-clamp, and a large socket to back it up. 4into1 stocks the bushings, 40548-268-000 $6 each. HondaJohn
 

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Well, you can McGyver it. My 1/2" drive, 1/2" socket is ~21mm O.D., so I would put a close-fitting bolt through it, and use a larger socket to clear the part, and pull it through by tightening a nut down.
 
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