Cheers for the rapid response Rob, so here comes another dumb question. The pre load washers, I was always under the impression they went at the back of the spring? Now reading your reply it seems they go at the front with the piston?
Also for clarity just have a look at this exploded diagram HERE
. Would you be able to point out which part the top hat is? I'm a tad confused (as always).
Once again many thanks Kieran