So, what was it that Menno said above? Don't worry too much!
Things didn't go too well today. Been out on the car from 10am till 6pm and got one side done. Dennis (the storm), was quite kind though, so I cracked on as best I could.
The bolt, the troublesome one that strips threads in the alloy bracket, well it decided to play a new trick on me. It snapped. Yes, I managed to shear off a 10.9 high tensile bolt so I had no choice to remove the bracket from the subframe. And in doing so, the top ARB bracket bolt also snapped off. So, it was driveshaft out, track rod off, ball joint removed and then cut the ARB bracket with the trusty Dremel and then wiggle out the old wishbone and alloy bracket.
Take into Skipton workshop and first thing was to cut off the remaining wishbone arm to the front bush, so I could get the bush off and then get to the sheared off bolt.
10 mins of angle grinder action later, the bolt end was revealed. Flip over, press out the back of the wishbone, very easy to do with a standard puller.
Then it was grind down the sheared bolt to be flush with the alloy bracket, centre punch and drill a pilot in the middle of the bolt. Fine - 3mm hole drilled and then the b****r goes and snaps off in the bolt. As the drill bit is ultra hard, I then had to drill 2 more holes either side of it, so I could get needle nose pliers in to pull the snapped bit out.
Next up, widen the hole out gradually to 10mm at which point the remaining bolt material started to unwind from the threads and then it was a simple 2 pass with a tap. Nice clean threads revealed and no need for helicoils which is good.
Then, grind off the remaining ARB bracket and tap out the remaining bolt - a job made easy as the bolt was super hot from grinding and the hole it passes through is not threaded.
Tool from ebay worked like a charm to press out the old trailing bush and press in the new one. Clean up all the bores with a wire brush on the trusty Dremel, liberal dosing of copper grease and then it was re-assemble onto Tank.
I've got 2 new alloy brackets on order as next time the job is needing to be done, I know that I'll need them. I'll also pick up a new ARB bracket on Monday - it's secured by a split bracket on the OSF at the moment, which will be fine for the time being.
Everything went back with copper grease liberally applied, wheel is now nicely centred again in the arch and the good news for the NSF wishbone is that it's in much better condition than the other side, so that one will be replaced when the weather is a bit better and there's longer daylight too.
No photos I'm afraid, as between the rain and the grease, my hands were in no state to get around the camera.