Hello Pete,
Welcome to the forum first of all and the wonderful (and frustrating) world of Jaguar ownership. I can't answer your questions but I can give you some links for reference to people who can. First I would get in touch with Moss Motors (
www.mossmotors.com ) for a catalogue and especially with Terry's Jaguar for their catalogue. Terry's has a great deal of info on the Mark II and their catalogue features a beautiful maroon Mark on the cover. I don't have it here in front of me, but the guys at Terry's can answer your upgrade questions and would most likely have what you need (
www.terrysjag.com ). If you haven't yet done so, read the model page at jag-lovers.org (
https://www.jag-lovers.org/saloons/ ) for your car and check out their tech tips. I am sure that someone has posted something concerning the steering issue... if not, you may make a few contacts by posting yourself.
The folks in this forum will be of great help (and encouragement) and I'm sure that some of our members have the answers you're looking for. Give them a few days to respond to your post. Jack Farrington is a great source of mechanical information (John S. Farrington). You may drop him a line. Use the email button, you'll find his name on many of the Jaguar technical posts in this section.
Enjoy the new car... I think the Mark II is one of the most beautiful cars ever made and hope to own one as well in the future. In the meantime, I am tinkering with a 1975 XJ6 Coupe. I think that getting a set of proper British standard tools is a great idea... you may not feel much of a difference, but your car will. Hope to hear more on your findings soon.
Regards,
Brian /ubbthreads/images/graemlins/cheers.gif