yeah i posted there first but i thought i'd post here as well cod i'm in adelaide and thought it might be easier to chat to locals about what's what...i also just said in the other post: It's just that i've been offered a 81 for $50 and the diff in my 74 is very noisy so i was thinking of grabbing the car and swapping the diffs...just to loose the noise...not as upgrade or anything..also thinking of swapping engines if it's not too hard.. ie: very easy..