Well, the caliper carriers have come off. 24 hours with the WD40 has likely helped. I tried to tackle them the next day, but they were still not moving, so out came the heat spanner. I wrapper a large sheet of folded kitchen foil around the rest of the parts I didn't want to get hot to protect the rubber boot in close proximity. A minute or so with a cooks blow torch (one of those gay creme brulee torches you can buy from ) and the lowest of the two bolts came off. The top bolt was a little more stubborn, and as already suggested above, whacking the caliper carrier forwards and backwards to loosen the nut and bolt helped. It was still really really tough though. This would be much easier on a propper garage ramp, as with just axel stands the car is not THAT far off the floor. Due to the stubborness of this nut/bolt, the lowest possible position of the breaker bar (i.e. touching the floor) was insufficient because when force (significant) was applied the bending of the breaker bar and stub axle carrier meant that the breaker bar touched the bottom of the bumper. Hence the need for WD40, heat spanner and whacking the caliper carrier back and forth. You can see in one of the pictures just how badly corroded the back of the stub axle carrier is. If you try this, enjoy :lol: