1998 Durango
 

whats up guys im looking at buying a truck to hail with. I have narrowed it down to a f150 v8 5 speed rwd exted cab, or a 1998 durango sport 5 speed v6. The problem is that the durango currently has the speedometer disconnected. the owner says that when he reconnects the speedo the rpm's go up. is this a quick fix or something that is going to be a pain? Im not looking to out alot of work ionto something.