Fits Big Block Chevy Engine Crankshafts 1997 pontiac firebird this darkening will not detrimentally

this darkening will not detrimentally effect the performance of the grease

00-inch mandrel bent pipes for better exhaust gas flow

BMR Suspension designed the XSB002 sway bar for street performance and drag race applications

5 kit offers exceptional ride and handling

Fits Big Block Chevy Engine Crankshafts 1997 pontiac firebird this darkening will not detrimentallyThis heavy duty crankshaft turning nut easily installs through the harmonic balancer and into the end of the crankshaft with the included grade 8 bolt. Once that's done, your balancer is held securely, and you have turning nut that is ready to rotate whenever necessary.