1989 GMC 1 ton truck, 2-wheel drive single axle. Glass rack cattle guard on the front are not included in the sale. The engine is 454 cubic inch 7.4 liters with a 4-spd manual transmission, dana 60 rear end with 4.10 gearing. The oil pump has failed and needs replacement. The engine was rebuilt at 226,000 miles. The vehicle has mostly road miles in the glass business. It was a great truck for me in the glass business, I bought it 9 years ago. Body in good condition, cab corners rockers have rust as typical for these models, cloth seat, no bad glass, etc. I was going to fix it, then a friend had a 34 ton that I bought. Great truck for racers or dirt racer with the big engine, trans., and rear end. Its a workhorse Estimate between $400 $700 to replace the oil pump.