Cheers guys, yeah i would go for replacing all 4 tyres because my tyres are crap now anyways(crap unknown brand) but a bit low on funds atm, just looking to see if changing a pair on the same axel is an alternative. So its safe yeah? wont destroy the centre diff as i was told? If so, ill prolly just go for 2 for now then the other 2 when i have more money and rotate them when i put the last 2 of the 4 on(same tyre type ofcourse).

Cheers guys, appreciate it