am after a mk 4 escort lsd gearbox and just wanting to no if it goes straight into mk 3 fezzy turbos i no the blocks the same but are the gearbox mountings ????? also i have a lightened and balanced flywheel for a series 1 gearbox will this go in a s2 box and still work with a fiesta efi management i was told it wud not ? also wot differences is there through the gears between fiesta box and s2 lsd !!! ie any more speed in 3 or do they have the same drive ??? sorry not clued up on gearboxes aint had a ford long enough before its gone bang lol