Mike:
Click on this link for the Dozer Blade info.......
Blade
Binder Books has the "Bolt-on Manual"....
1019804 - 38", 42" & 48" 3 spindle, cast iron sided used from 63-68, bolt mount. Operators manual used with models 70, 71, 100, 102, 122 & 123; 10 pgs