Having a problem with a leaking speedometer cable? Here is the solution. A new speedometer housing, also known as a speedometer bullet for your 350 transmission. New machined housing with a new o-ring and seal installed. Does not come with the bolt, hold down or gear. Please always check your gear for wear on the shaft. If there is wear replace you speedometer gear as well, which is sold separate. We will need to know what tooth count you need when ordering a new gear.