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She is a more solid machine compared to newer models.
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On line metal suppliers carry hex rod and all you would need to do is cut it to length. If you go with a riser kit (newer), this saw will have a hex shaped upper guide post ,newer ones are round. if you add a riser (after market replacement springs work well). One thing that you may want to replace is the tension spring esp. The upper arm casting is sweet compared to new machines, a more ridgid hollow casting instead of one that looks cut away with ribs. Upper and lower guides will be the same as current saws as will be the blade tracking assembly and trunnions ( you would need to salvage the old angle scale plate to put on a new front trunnion so the scale and pointer line up ). Best place to get bearings that I have found is Accurate Bearing, they carry what you would need. The one your looking at will have bearings with extended races which can still be bought or if you know someone with a metal lathe they can easily turn a few spacers to use more current bearings (easier to find and a couple of bucks per bearing cheaper). Very different lower castings, different bearings (machinist work needed to modify to current bearings) and a different lower guide casting design ( a pain to find if you break it, DAMHIK) and (b) 1937-38 solid (steel disc) wheels otherwise the same design as the one your looking at. (a) is 1934-36 first generation with rays on the upper door and the original 1/3 hp RI motor.