Sonnax offers oversized pump gear set 28201-OSK for GM Powerglides. The O.D. of the outer gear is .030" larger than OE and the gear set is .015" thicker than OE pump gear sets.
Allows the pump housing to be refurbished
Powdered metal gears promote self-lubrication via oil impregnation
Sonnax oversized pump gears require machining to the gear pocket in the pump housing. See instructions for details.
Includes:
Inner Pump Gear
Outer Pump Gear
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