Speedometer issues

I'm just wondering if anyone has run into this. I started a thread in the technical section, but haven't had a lot of info back.
Bottom line, my speedometer doesn't work correctly half of the time. Initial start up and move it reads 0, 5-7 miles down the road it bounces, about 10 miles it works correctly.
Wheel speed sensors and transmission sensors have been replaced. Now the dealership wants to replace the ABS module. Smh. This is irritating as nothing else is affected. Truck drives very good.

This is the other thread.
https://www.tacomaworld.com/threads/speedometer-doesnt-work.476773/