GTD starter motor

Hi Guys,
Can anyone tell me where i can get a replacement starter motor for my 1992 GTD. The current one i know its not a FORD unit.... Looking for a hi-torque replacement



Thanks Guys,
Found a serial No 73GB11000AA on the motor....popped it into google turns out to be a 3L Capri/Ganny.
Replacement high torque version from Powerlight is a RAC407......happy days