Santana was lightyears ahead of BL Solihull when it came to building things properly, including gearboxes. This part has to be coming out of a 3.5 carbed (not Defender) 110 from the UK.yes it will fit but being a santana box you may be in for a surprise when it fails, santana had a knack for using their own style of land rover parts. often british parts have difficulty fitting in santana cases, if going manual I highly reccomend an r380 with lt 230 t case.