Hello

I am looking at buying a 2008 F250 with 95,000 miles on it.. Question I have is what should I look at before buying. The truck runs strong no smoking, shaking or hard shifts, no leaks or signs of leaking. Tranny fluid looks good and oil looks good. Just wondering if there is anything I should really be looking for. I haven't owned a diesel since my 2001 F250 7.3. Was also wondering thoughts on an extended warranty? I know its like throwing $$ away but if the tranny or motor head or emission goes out, I would rather spend $100 deductible than $2,000 to $6,000.. Again that's on an "WHAT IF"....

Any input is appreciated..