The B& M Quicksilver features a ratcheting action for positive shifts, Chrome Knob, neutral safety switch, NHRA/IHRA approved Reverse Lockout. Fits Most 3 and 4 speeds. Fits GM TH400; 350; 250; 200; 700R4 and 2004R. 4L60E; 4L65E; 4L80E; and 4L85E (for 4L60E/4L65E/4L80E/4L85E equipped with a PRNDL switch you will need optional accessory kit #75498). Ford C4; C6 and AOD (AOD requires #40496 installation kit). Chrysler 1966 and later Torqueflite A727 and A904. fits 4L60E when used with custom installation where an aftermarket controller is used to command the transmission. 4L60E factory neutral safety switch may interfere with B/M shift lever on 1997 and later transmissions