Need help with speedometer cable end piece I’m lost as heck on this one.

[Cesar Diaz]

Thank you for the response if the speedometer key is the part that goes into the tranny I actually have that. What I. Need is the small plastic piece that goes on the end of the wire that goes into the speedometer gear. Unless I’m misunderstanding but I will check Napa as well I’m not a mechanic, Just a do it yourselfer, working on my kids first truck.