The patented Cognito Alpha Pro Ball Joint is the next level, end-all be-all solution of upper ball joints. It eliminates the problematic dust/grease boot by using a durable scraper type seal that is not susceptible to damage that a traditional dust/grease boot is. Although the ball joint is firmly sealed and pre-greased, there is a grease fitting at top for any periodic maintenance needed. With a small internal cavity for grease, the joint does not need much at all. The internals are alloy steel, absent of any plastic liner, with alloy races and grease paths. The carburized and surface coated taper pin is a precise fit, has an oversized sphere in the socket for large contact surface providing excellent strength and wear characteristics.

This Part Fits:

Year	Make	Model	Submodel
2024-2025	Chevrolet	Silverado 2500 HD	Custom
2024-2025	Chevrolet	Silverado 2500 HD	High Country
2011-2025	Chevrolet	Silverado 2500 HD	LT
2011-2025	Chevrolet	Silverado 2500 HD	LTZ
2011-2025	Chevrolet	Silverado 2500 HD	WT
2024-2025	Chevrolet	Silverado 2500 HD	ZR2
2015-2025	Chevrolet	Silverado 3500 HD	High Country
2011-2025	Chevrolet	Silverado 3500 HD	LT
2011-2025	Chevrolet	Silverado 3500 HD	LTZ
2011-2025	Chevrolet	Silverado 3500 HD	WT
2024-2025	GMC	Sierra 2500 HD	AT4
2024-2025	GMC	Sierra 2500 HD	AT4X
2011-2025	GMC	Sierra 2500 HD	Denali
2024-2025	GMC	Sierra 2500 HD	Denali Ultimate
2024-2025	GMC	Sierra 2500 HD	Pro
2011-2025	GMC	Sierra 2500 HD	SLE
2011-2025	GMC	Sierra 2500 HD	SLT
2024-2025	GMC	Sierra 3500 HD	AT4
2011-2025	GMC	Sierra 3500 HD	Denali
2024-2025	GMC	Sierra 3500 HD	Denali Ultimate
2024-2025	GMC	Sierra 3500 HD	Pro
2011-2025	GMC	Sierra 3500 HD	SLE
2011-2025	GMC	Sierra 3500 HD	SLT