Starts missing at even speeds. Not usually during

Sorry, but this is too much random information. What EXACTLY is the vehicle doing?
When you first start the vehicle what does it do? Easy start and even idle? Easy start and rough idle? Hard start and even idle? Hard start and rough idle?
As you hit the gas does it pause then give power? Stutter as it gives power or give power then die?
Too much information can confuse the fix.

Have you checked the transmission fluid?
May be a bad speed sensor. Just guessing, but if the transmission shifts based in part on speed, and the sensor I'd jumping around because it's bad, then it's possible the computer is shifting weird due to a bad input.

clutch plate and pressure plate could be worn out.

The speedometer and odometer gets a signal from the speed sensor in the side of the transmission where the speedo cable once was.
The problem could be the speed sensor, or something in the wiring, or in the instrument cluster. Or it could be that the transmission is failing internally.

Yes. Replace the speed senor and all should be good. Make sure the connections are good also.

Sounds like your vehicle speed sensor is bad. The VSS gives your electronic engine control information necessary to control your transmission and ABS for the rear brakes as well as your speedometer. You should have a fault code but I would try that if I was you. Just my 2 cents worth. Hope that helps

Just check the transmission fluid-if low you have to add until it is full-do not overfill though. Better to have it just a bit low than overfilling it.
In park, can you accelerate to 2500-3000 rpm, and hold steady with no shaking or indications of a miss? If it runs good in park or neutral, then you probably have transmission problems. Frankly, it is pretty rare for a torque converter to develop a problem. Check your fluid, or try changing the fluid if it is dark or dirty looking.

low on transmission fluid ,

It could be a spark plug, plug wire, or a coil. Sometimes thay break down intermittently. If it needs a tuneup, that would be the first thing to do.

transmission!!!!!!!!!