Hello,

I study the possibility to fit an ITR LSD on my Y1 gearbox with some machining.
In order to make a good study of the machining, i need some dimensions of the ring gear or differential. In fact i need the PCD of the bolting and the inside diameter of the ring gear. See pics:



If somebody have a differential or ring gear out of the gear box ? Please help me

 

i cant remember if the Y1 has a 4.4 OR 4.26 final drive.

If its got a 4.4 (same number of teeth as the type r) then you should be able to swap the itr diff and ring gear into the y1 with just a small bit of maching.

the b16 size diff in the y1 is just a tiny bit smaller (pcd) than the itr. ive got both at my shop. ill look tomorrow and take some pics if i can find them.

 

Thanks a lot !

My final gear is 4.266 and i want to machine the inner diameter to the same as the ITR and re-drill 10 holes on the good PCD to fit an OEM ITR LSD. Because, it's the cheaper solution for me to put an LSD in my tranny ...
And i dont want to change my tranny because i have a custom 3-4 and 5 th gears very shorts ....

 

Up !