i have have a y1 and i was just curious i heard of people dropping a ITR fd into there cables trans. all you need is the counter shaft and the pinion gear does it fit? cuz know IB sells a 4.7 fd for cable. so if anyone has info let me know

 

The ITR FD and LSD will not fit into the smaller input shaft cable trannies (Y1, J1, JDM S1) but WILL fit into the YS1 (larger input shaft). To fit the ITR LSD in the YS1 you have to grind away some of the casing.

 

for all the you might as well go for the 4.9, also what he said is true , ya gotta have that ys1 case.

 

so does anyone know what final i can use? for my y1? is the 4.9 fd from ats? and do they have a 4.7? and thanks for the info!