And know this sounds silly, but I've tried a couple of local places (local motor factors and Halfords), but have any on the shelf. Need to be ordered in.
How come your rack was knackered......reason I ask is I had an advisory on mine at last MOT (Marlin supplied unit originally) and wondered if it was (yet) another design prob.
I'm not sure why the boot did this. Just noticed it was twisted and split. Maybe because the rack restrictors were removed??? I don't know. But others don't seem to be getting the problem.