Hi there thanks for that im going through the info now. Does the fact that i signed the paperwork with No Warenty actually mean i havent got a leg to stand on thought?

Hi there i hope somone can give me a bit of advice but i think im doooomed. I purchased a L200 Warrior two weeks ago. This vehicle came from a Garage in a local town. it cost me 4.5k and seemed to be ok when i looked round it and took it for a test drive. Unfortunalty i didnt test the 4 wheel drive on the test. I didnt test this until a week after purchase. i flicked it into 4x4 and the whole truck started banging and grinding. i immidiatly rang the garage to let them know that i thought there was a major issue. and they said i should get it checked out by a mechanic. i have now done this and it turns out that the 4 wheel drive is shot. the garage say its going to cost in the region of a grand to fix. ive spoken to the dealer i purchased the truck from and they are saying that its a sold as seen vehicle and its tough luck. unfortunatly one of the forms i signed says NO WARRANTY so i think i dont have a leg to stand on here but wanted to check. im really mad cause a grand bill after only owning the truck for 2 weeks is a lot to stomach. Any advice would be appreciated. ta Stu