70-81 F Body Crossmember Back w/ X System ZX6 120 in Compression Thickness -

120 in Compression Thickness - Multi-Layer Steel - Small Block Chevy - Each

Lug Nut - 5/8-18 in Thread - 1 in Hex Head - 45 Degree Seat - Open End - Steel - Zinc Oxide - Set of 10

Fitting - Adapter - Straight - 20 AN Male to 1 in NPT Male - Steel - Zinc Oxide - Each

It also applies if you’re running without a water pump or have switched to an electric pump

5 in Thick - Straight - MPD System Saver - Aluminum - Black Anodized - 36 Spline Axle - Midget - Each /

70-81 F Body Crossmember Back w/ X System ZX6 120 in Compression Thickness -Exhaust System Header Back 3 in Diameter Race Pro Mufflers Stainless GM F Body X Body 1970 74 Kit