Jaguar 5 Speed - Conversions for E-Type, XK cars and Mark Jaguar 5 Speed Conversions. Complete JT5 kits to convert E-TYPE, XK120, XK140, XK150 and Mark II Jaguars to a 5 speed overdrive transmission. Sold worldwide for 14 years. 1994 Jaguar XJS 5-Speed | Bring a Trailer 1994 Jaguar XJS 5-Speed. This 1994 Jaguar XJS coupe features the hard to find 5-speed manual transmission option. This one also features our preferred 1-piece headlights and an interesting later wheel swap, though the factory wheels are also included.