For info:
20 HP Relience AC motor, 1760 RPM, 220/440 Volt Drive All 2 Speed Gear Box, 4:1 and 1:1 Ratio, Model DAF 1237 Falk in line Reduce and Pinion, 30.85:1 Ratio,440-1740 RPM rating, Model 8DC3-02AS 11.5" cemterline spacing on pinon shafts 40.5" from center of bottom shaft to floor