Hi m8 my diffs let go last month so i rang up Irvine/Ripmax they put me through to a really helpfull guy called Ian. I explained what had happened and he said send the old parts in and they will sort it. He also told me about different spur gears mine were silvery gold but apparently theres some modified black ones. I sent all the parts off and three days later all new parts were sent back to me. The diffs that came back were alloy and spur gears were black. One word of warning though, if you order new diffs from your lhs you will end up with the old plastic ones as they are getting rid of old stock before suppling the new modified ones which personally i think is out of order[:@]