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Rockwell T221 10 Spline Coupler to SM465

Old Red K10

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Oct 31, 2024
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Spokane
Hello
I'm in the process of doing a full restoration to a 1968 Chevy K10 step side that was my Dads. I've completely torn apart and rebuilt both the SM465 and the mated Rockwell T221. I'm at an impasse at the moment as for months now I have been trying to track down the 3 3/8 inch -10 spline coupler to marry the two. The original one is pretty worn. Anyone have an idea where I might find one for sale? I've called gear shops all over the country, checked eBay, craigslist, internet sites and even gone to machine shops to try to have one fabricated (which they've all quoted me over$1000 to do). Any help to locate this elusive coupler would be greatly appreciated.
 
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