Changing the Speedo

[cyberstang5.0]

Originally posted by 88GT 5pt0
OK, I will try to make this easier to understand. The gauges I want overlay the original ones, so if I just change the gauges when I'm going 85 it will say I'm going 140. So I would need to get a different speedo gear to fix that. OK so I go get that speedo gear and everythings fine. Now I want to put in a 373 rear gear. Now the speedo if off again so I will need totaly different speedo gear. My question is, what will be the final speedo gear I need to skip buying the first one.

You will need to buy a new gauge itself. You can go to a junk yard and pull one off of a stock 5.0. The stock 5.0's came with 140mph gauges and the police packaged stangs came with 160mph ones. If you replace the entire gauge, you will not have to worry about the speedo gear. The gauge itself is calabrated to show the correct speed at the correct location on the face.

When your ready to get your 3.73's installed, then you'll need to get a new speedo gear (it's located in the tranny so you won't have to mess with your gauges again)

I know how fun messing with the gauges are. I installed a custome gauge cluster filled with Autometer gauges in my stang. Hope this helps you out.