Hey robdog i have a r31 diff in my 1200 ute thats 1 cm shorter either side ,it can be done just tell the guy whos doing it that you want it shorter than the 1200 diff. The only problem i found about doing this was you need almost zero offset wheels to fit nicly that means chasers are out of the question unless you want to run bolt on spacers. im running 15x8s with 195s and a offset of +4 and man its a tight fight but looks awsome