Andrew, I pulled the front bolt, inserted a nut and bolt through the top of the bracket and jacked the arm down as prescribed in the threads I have seen. I marked the line of the bush inside the bracket and drilled through into the bush insert. I pushed on and drilled right through the other side of the bracket. Then I made two plates to reinforce the 'oles in the bracket. These were pretty sturdy. Not washers. The position I selected was based on the prop being almost straight. But also because it left metal in the bracket inserted of breaking through. I stuck the nut and bolt through, nipped them and Bzzzzzd the plate. I am not an expert in vertical welding, but did my best. No way it that ever coming off.
On the off-side I hit a snag. The diff is in the way so you can't drill straight. And the hub is in the way if you come at it from the other side. So I stripped out the hub and brake backing plate, then locked the steering over to get an acceptable angle of dangle. Not brill in my view. No one mentioned this factor in their write ups.
How does it drive. Oh yes, much better. Instant difference, the wibbly factor has gone. It was tolerable, but not tight. I wouldn't do more than that on the front hole. Maybe I might try the back hole (Oooeeer Missus) but every bit is an improvement.
That help?
C