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Price: $34.75
GM Heavy Duty ReactionSun GearShell
GM 700-R4, 4L60, 4L60E
The originalreaction sun gearshell is a major weak spot in the 700-R4 and 4L60E transmissions.
The splines usually get worn down or completely stripped out.
The Beastis an updated heavy duty reaction sun gearshell that is designed to be strongerthan the originalshell.
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Savea bundle here over the cost from a dealership.
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