on a 2'' lift you do not need to change radius or trailing arms you will need extended bump stops and extended brake hoses ( not a must more a precaution )
have done that on mine with no problems. ( apart from crap britpart springs sagging ) do your research before you spend your money we all have are own opinions and they all vary
SOMETIMES you get away with a 2 inch lift. It does depend how fussy you are and what tollerance your LR has been built to. What wickford says is true about usually you get away with it but its not guaranteed and for the size tyre you intend fitting I wouldn't bother.
Do be aware that it can cost in excess of £1K to get back a decent smooth ride for Zero gain in offroad ability if anything you will increase the C of G so will lose performance.
springs,
shocks,
Bump stops,
posibly shock mounts,
extended brake lines,
castor correction radius arms,
cranked rear arms,
bush kit because cranked arms need polybush type bushes,
wide angle propshafts,
Tyre size dependant Gearing low range can become horrible (trust me been there resolving the issue now)
All the above **could be needed** and if done badly you can end up with a vehicle with less offroad ability that a stock defender/90. Also note articulation looks great but My opinion is its by far the most over rated posuers need only apply part of Modding your mota! There are many vehicles out there that look wonderful but are in reality just complete ****e (the owners are usually more than overly happy with their performance because of the illusion that spending a fortune on "a lift kit" will make your landy better).
You have been warned research this subject thoroughly I would suggest you take note from anyone that has real experience with suspension setups (mine took me 2 months to decide on springs alone spring rate, height and fitting checking took many hours work) Ask people that have been involved in real comps/trials rarther than hobby offroaders may I suggest andy66 is a good person to talk to or PM he will give you a real answer and not the usual "I fitted this and its great with no real explaination why or any conclusive comparison between standard and modified"
My personal opinion is if you must lift your landy (RR HD rears) Red/White springs all round and Procomp +2's is not a bad starting point which was a good trialers choice for years. If you fit a winch or carry alot of crap then this needs taking into consideration.
The tyres you intend on fitting I wouldn't bother with a lift it absolutly pointles. Do buy a complete bush kit Standard (that horrible word) and fit that and see how the LR performs first. When you want to fit big tyres (I mean 35 inch plus) then think about a lift kit. The military fitted 35 inch tyres without lift kits on 110's so why everyone instantly believes they need a lift kit to fit slightly taller tyres than a factory option is beyond me.