Speedometer

Does the computer run the speedometer? If I remove the computer, How can I keep my speedometer? Are there mechanical ones that will fit? Is there a way to connect a mechanical speedometer to a 4l60e? Thanks in advance.

You could get a mechanical. But I'm kinda curious, if you are romoving the computer how do you plan on shifting your 4L60E? They are electronically shifted from the PCM.

Can we assume from your screen name that you have some sort of 95 F-Body? A "signature" with basic info on your car..... year, tranny type, major mods, etc.... will help people answer your questions more accurately.

I don't use my stock PCM to run the engine - I have a MoTeC M48Pro for that - but I still have my stock PCM in the car to drive the speedo and a couple other things.

Another alternative would be using a VSS sensor in whatever tranny you are planning to use in the car, and possibly use an interface box like the one from Dakota Digital (SGI-5) to interface it directly to the speedo:

http://www.dakotadigital.com/index.cfm/page/ptype=product/product_id=126/category_id=287/home_id=59/mode=prod/prd126.htm