Allstar Performance SB Chevrolet Aluminum Crankshaft Hub 9210CD Nuts are often used when

Nuts are often used when the back side of a fastener is not accessible and they allow quicker installation and/or removal of chassis components

Dual-Strap handle

Tension springs and release pull tabs are used on adjusters for security and ease of use

1979-1988 GMC G3500

Fits different body shapes and sizes and adjusts to different race seats

Allstar Performance SB Chevrolet Aluminum Crankshaft Hub 9210CD Nuts are often used whenDesigned specifically for circle track racers, this SB Chevy aluminum crank hub is NOT a harmonic damper. Hub is significantly lighter than a harmonic balancer and dramatically reduces rotating weight for quicker acceleration off the turn. Hub has engraved timing marks at 0 and from 30 42, is 4 3 8" in diameter, features (3) 3 8" 16 accessory threads and weighs just one pound. Fits all internally balanced small block Chevy engines. Designed for