greg/sd
New member
kory are they cabovers or pickup style. If they are the cabover gmc's the trans is alot beefier than the pickups. I dont think you'll have a problem with the 5.7 liter chevy they should last you at least 200,000 miles with proper maintainence. Then you rebuild them for another 150,000 miles. but I would still go diesel if you can.