Maxim Gearbox 421325  Replaces New Spreader Gearbox (part # 99087.) This is the same as a 99067 but comes with 4 extra bolts also the same as SnowEx 85431 also same part as 31098 and 31509. 

This is for the Western Tornado (newer version only, serial # 160201 and higher); Western Striker (electric only); Fisher Poly-Caster (newer version only); and Fisher Steel-Caster (electric only); Snowex Poly Helixx, and SnowEx stainless steel Helixx. This is used on many sizes ranging from the small .35, .7, 1.5, 1.8, 2, 2.5, 4.5 yard. Gear Box 10 x 20 2X Worm Gear.