Starter issue

[Dustin83c10]

Hi I recntly purchased a stock starter for my 83 c10 it had a mini aftermarket starter at the time but went out and I never had a problem
With it starting till now the new stock starter I got I hooked up just like the store told me to cuz it hooked up different from the aftermarket one and now everytime I turn the key it will stay on while the truck runs and it will also stay on when the truck is off I checked my wires and they all looked good I can't figure out the problem any help would be greatly appreciated thank you in advance