1993 Chevrolet K3500 Police PREP PKG

I have 93 Chevy 3500 4x4 with 6.5l Turbo diesel engine with 255k ,,,,,has an automatic tranny ,,,,,COLD A/C AND GOOD HEAT,,clean body utility diamond plated tool box and great tires,,,,,,,this truck is clean an solid!!!!! ENGINE RUNS VERY SMOOTH!!!, , , NOTE!!!!!! I BOUGHT THE TRUCK AND PUT A NEW FLY WHEEL ON IT,,,,WHEN IT WAS FINISHED I TOOK IT FOR A DRIVE IT WAS RUNNING AMAZING!!!!! BUT THEN BROKE DOWN BECAUSE THE MECHANIC DID NOT TIE THE WIRING HARNESS UP AND IT WRAPPED AROUND THE DRIVE SHAFT!!! THE MECHANIC WILL NOT ANSWER NOR PICK UP THE PHONE!!!! SINCE THEN I PUT A NEW WIRING HARNESS ON IT AND NEW COMPUTER!!! THE TRUCK RUNS AND DRIVES BUT WONT GO INTO 3,4 GEAR !!!!!! IM OUT OF TIME AND MONEY.....I KNOW IT IS SIMPLE FIX FOR SOMEBODY MECHANIC SAVY,,,,, IT'S A DAMN SHAME BECAUSE IT REALLY IS A SOLID TRUCK!!!! BUT I GOT TO DO WHAT I GOT TO DO I HAVE FAMILY TO FEED!!!!!, , P.S TRANNY WAS SHIFTING SMOOTH AND THE 4X4 WAS WORKING AS WELL!!!, , MAKE AN OFFER HURRY WONT LAST !!!!!770-375-6149