Groz 19mm Boring Bar** AB6388-256 Flowmaster's American Thunder® Crossmember-back exhaust

Flowmaster's American Thunder® Crossmember-back exhaust system for the 73-87 GM C10/C20

Column diameter: 92 mm

Provides good friction on clutch discs

T1244 | Teng 44pc 1/2in Dr

Champion M6 X 20Mm Flange Head Set Screw -Gr8

Groz 19mm Boring Bar** AB6388-256 Flowmaster's American Thunder® Crossmember-back exhaustManufactured from selected steel these boring bars are accurately machined. Bars incorporate broached holes that accept standard high speed steel or carbide toolbits conveniently. Bars are supplied with an allen key but without toolbits. Boring Bar Length: 9 1 4 inch (235mm) Boring Bar Diameter: 3 4 inch (19mm) Holder Length: 3 3 4 inch (95mm) Square Size: 1 inch (25mm) Tool Bit Size: 5 16 inch