GM Genuine Parts Parking Brake Drums are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies

Bolt Circle Diameter (in):	5.75
Bolt Circle Diameter (mm):	146.05
Bolt Hole Quantity:	4
Drum Center Bore Diameter (in):	4.7555
Drum Center Bore Diameter (mm):	120.7897
Height (in):	3.9
Inside Diameter:	228.981
Inside Diameter:	9.015
Length (in):	9.6
Material:	Cast Iron
Mount Hole Diameter (in):	0.521in
Mount Hole Diameter (mm):	13.2334mm
Programming Required:	No
Weight (lb):	8.05
Width (in):	9.6

• 1998-1999 Chevrolet P30