Classic imprinted shifter knob: 1 7/8" ROUND BALL of molded polymer painted WHITE 3 speed shift pattern Plain sides - no logo 3/8"-16 threaded brass mount Jam nut included; knob will break if mounted w/o nut! Comparable to discontinued Mr Gasket #9617 & Hurst # 1637624 without side markings Interchanges w/ GM #9776441, 9793565, & PY671 Fits most AFTERMARKET Hurst chrome sticks Does NOT FIT aftermarket Hurst sticks produced before ~1975 (3/8"-24) Does NOT FIT Indy 3 speed shifters (3/8"-24) Also fits 1964-1981 Pontiac, 1969-1981 Camaro, & 1970-1971 Ford FACTORY Hurst shifters Does NOT FIT "non-Hurst" GM factory shifters (Muncie etc) before ~1973 Does NOT FIT Buick, Olds, AMC, or Mopar factory Hurst shifters (3/8"-24) Does NOT FIT 1972-1973 Ford factory Hurst shifters (7/16"-20) Confirm thread size BEFORE YOU BUY!