Knob Adapter / Boot Retainer for 1992-2017 Viper & 2015-2023 Challenger

Knob adapter extension for use with aftermarket shift knob: Fits 1992-2017 Dodge Viper - except Hurst or Mopar aftermarket shifters Also fits 2015-2023 Dodge Challenger : 6 speed manual w/ stock shifter stick Does NOT FIT Hurst chrome sticks, earlier model years, or any other model Knob 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 stick 2 7/8" long w/ 7/8" upper thread length 4" overall height when used w/ a 2" knob = 1.5" shorter than stock height Upper thread (male) is 16mm x 1.50; lower thread (female) is 1/2"-20 Jam nut NOT included - reuse stock jam nut (under boot) Leather console boot snaps into groove near bottom as original Background info: Dodge introduced a new shifter stick design for the 2015 model year Challenger. Unlike the earlier models, the knob threads onto the shifter stick, and so it is