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To the fellows that asked about the 4 blade repro fans. When I restored my '31 Slant Windshield 4 Door Sedan (160-A) 23 years ago I was concerned about the reports of the 2 bladed originals comming apart so at the time opted to buy a 4 bladed repro. Being a bit paranoid I took the new 4 bladed fan and spot welded over the rivits and also ran a small smooth bead at every seam where the blades overlapped. I then ground the longer welds smooth, ground the welds at the rivits a smooth domed shape and painted where one cannot even see the welds. I am an amatuer home welder and do not have technical engineering training but the fan has worked well for the past 23 years as I assume a "single" unit due to the welding. Maybe someone with better technical know how will chime in to let us know whether the welding on my part is really ok to do or pure overkill!
