5 speed engraved shift knob w/ Sidewinder switch + boot retainer: M12 x 1.25 for 2005-2010 Mustang
5 speed engraved shift knob w/ Sidewinder switch: M10 x 1.50 for Jeep Wrangler TJ & Dodge Ram 10mm x 1.50
5 speed engraved shift knob w/ Sidewinder switch: M12 x 1.75 for 1983-2004 Mustang
5 speed engraved shift knob w/ Sidewinder switch: M16 x 1.50 for 1983-2002 Camaro & Firebird
