Seller notes

SmartShell® Heavy Duty Reaction Shell KitTH700R4 4L60E 4L65E 4L70E GM TRANSMISSIONfits all varieties of these transmissions 1982-UP Solves Multiple Problems in All Performance Applications In GM 4L60, 4L60-E, 4L65-E and 4L70-E units, bulky aftermarket shells always fall short when splines continue to strip and the shells break under stress. A chronic problem with both OE and thicker aftermarket shells is failure of the rear planetary bearing. From daily jobs to extreme builds, the Sonnax SmartS...

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