there are more threads on mini spools than iv had hot meals mate. Try using the search button but under the area where you type on the word "mini spool" there is a box, click that box and change it from 'search entire thread' to 'search titles only' this will narrow it down.
Full spool is an entire new diff housing, very tuff, illegal on the street
mini spool uses your current diff housing but a 'spool' will lock your current gears, illegal on the street
A mini spool/full spool will 'lock' your diff. basicaly both wheels are turning at the exact same speed, it will result in a chirping noise when taking tight corners
BUT, do a search mate there is ****loads of threads
no longer a hoon by association - the commodore is gone