Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
Mine were NTN iirc I did post when I bought a kit for my 400. They also provide a better seal attached to a shim.I shimmed mine to fit leaving sufficient top thread on my 500. The 400 has only half a kit from a different supplier I will remedy that in the future. I want to keep the 400 as a runner until the 500 is completed - then I will return to tweaking a few bits on the 400 before I sell her or hit my expiry date - I was 75 at the weekend. lol
Brufen is bad for the waistline mate, i use co codamol!