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Product Description
This part replaces the stock draft gear box in the Stewart F 3 thru F7 B-Unit. There are four draft gear boxes. Enough to do one B-Unit both ends and two A-Units rear ends.
After you remove the coupler cap. You must drill the hole out for a 0-80 clearance hole. This should be 0.058" diameter to 0.060" diameter. There is a pilot hole already in the draft gear box body. This hole must be drilled and tapped for a 0-80 screw.
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