I'd put it in the bank. Get a couple of short-term CDs an' let it sit.

 

Sorry I must have misread I thought you said you still owed 25000 on truck well since its paid off I agree with other guy save it and put in the bank but since we are men and love our trucks so much I would do the 6inch lift along with bigger tires along with superchip,exhaust,CAI,headers....that's if you want performance if your going for looks again with 6inch lift along with tired then Recon headlights and tail lights, nice grille guard or light bar and mount 4 Hella lights an possibly a new paint job to your liking

 

Almost failed to mention a nice audio system and security system both are your own taste in what you like, for audio I would get all JL stuff but that's my preference

I had all JL (amp,subs,tweeters,wires) and man did I love them but a relative wanted it so joking I told them they trade me there secondary car (01 Chevy impala) and they said yes so I traded and my wife drives that car, anyway my point is I just went and bought $500 dollar system from Walmart and it's pretty decent for being about a quarter if the cost as my JL system

 

Buy a Cummins!

 

I would take $200 and fill the tank, drive to a store and by a couple cases of beer or bottles of your favorite. Then I would drive to a bank and do exactly what Mike said above.