18.75 to 1 INSIDE DRIVE Reduction gearbox with short shaft.
The output shaft comes back towards the engine.
It's CNC machined and has Six High speed Double sealed ball bearings, 1/2" thick gears with a Life Time Warranty.
It has a 5/8" OD output shaft with a 3/16" key way and snap ring groves. Over all length of the short shaft (standard) is 0.94" long with a usable length of .75".
If you need to put a # 41 or # 40 sprocket on the shaft you will need to add the longer shaft that is 1.530" long and has two snap ring groves. Most of the #41 & # 40 sprockets 9 to 15 tooth are 7/8" wide. You will need two 5/8" snap rings, two 5/8" 14 gage & one 18 gage machine washer to take up the space in between the two snap ring and a 3/16" x 3/16" x 3/4" sq. key.
The chain - sprocket guard is included.
Cast Alum. MADE in the USA.
One of our web sites will be engraved on the outer cover.
Notice that the gearbox can be rotated to a 3, 6 or 9 O'Clock position.
; "18.75 to 1 INSIDE DRIVE Reduction Gearbox fits most 76 mm Clutched Engines.")
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