Hello i have our 1991 gmc sierra 4X4 x tra cab Z71 truck for sale this is a very rare deal this truck is all original in and out and never repainted in its 29 1/2 years of age and it runs and drives great with no fluid leaks and new tires/brakes muffler / tailpipe and in the past few months it got a complete tune up and all new fluids and filters ect when the tune up was done it got new plugs,wires,and the dist cap and rotor, i got this truck from a retired local owner he had this truck for a long/long time and he kept it all original and kept it in his carport and never smoked in or used for work or off road and the topper and bed rug has ben it it since new this truck is a rust free fla truck that will drive anywhere and yes the a/c and 4x4 works i work a bunch of hrs for a local tow co and i drive a tow truck home so i only used this truck to pull my 16 foot bass boat when i had the time to use it but i have since sold the boat so i have this like new 29 year old truck up for sale for a fair price the only paint issue is the hood, it would need repainted for the truck to look 100 % i would be glad to ans any questions on my cell at 863 670 4096 thanks for looking and i have the truck for sale local so i reserve the right to end auction if the truck sells local thanks