Check the listing for details. Short Shifter / Shift Knob Adapter / Boot Retainer for 1992-2017 Viper. Color: Black, Condition: New. Listed at 11.95 USD. Knob adapter extension for use with aftermarket shift knob: Fits 1992-2017 Dodge Viper - except Hurst or Mopar aftermarket shiftersAlso fits 2015+ Dodge Challenger : 6 speed manual w/ stock shifter stickDoes NOT FIT Hurst chrome sticks, earlier model years, or any other modelKnob NOT included!Requires a knob or handle w/ M16 x 1.50 thread - NOT 1/2"-20!See separate listings for kits w/ knob or pistol grip handle Black-anodized billet aluminum adapter threads into knob and onto stick2 7/8" long w/ 7/8" upper thread length4" overall height when used w/ a 2" knob = 1.5" shorter than stock heightUpper thread (male) is 16mm x 1.50; lower thread (female) is 1/2"-20Jam nut NOT included - reuse stock jam nut (under boot)Leather console boot snaps into groove near bottom as original