Thread: Crank Question?????????
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12-19-2008 12:20 PM #3
4340 is a stronger and tougher (as in fatigue resistance) alloy than 5140.
KitzJon Kitzmiller, MSME, PhD EE, 32 Ford Hiboy Roadster, Cornhusker frame, Heidts IFS/IRS, 3.50 Posi, Lone Star body, Lone Star/Kitz internal frame, ZZ502/550, TH400





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A belated Happy 78th Birthday Roger Spears
Belated Happy Birthday