Allstar Performance Sprint Birdcage Bearing - 28mm DX2800K Standard-duty kits feature 3/8" studs

Standard-duty kits feature 3/8" studs and heavy-duty models use 1/2" studs

All bushings have 1/2" I

Gun Drilled

Offset air cleaner stud ALL26057 is required

Manual wing adjuster is for sprint car top wings when rules do not permit the use of hydraulic cylinders

Allstar Performance Sprint Birdcage Bearing - 28mm DX2800K Standard-duty kits feature 3/8" studsReplacement bearings for Allstar birdcages and many other brands. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items available from Allstar Performance. Product Description: Birdcage Bearing 2. 758 in ID 3. 935 in OD