The reason i asked is beacuse i fitted a mtx75 box in my mk3 zt escort with a silvertop without a problem it was a pretty easy to be hones. iv had no ground clearance issues and im lowered 30mm with 15" wheels, also all i done to sort the speedo issue was to swap the bell housing from the electric speedo type to the mechanical type then the original escort speedo cable fits onto the box.