4L80E speed sensor replacement

I replace the speed sensors in the 4L80E automatic transmission in my 1992 Chevy Silverado with the 6.5 liter turbo diesel. I am troubleshooting a lock up torque converter that won't lock into overdrive.
Ebay Partner Network product used in this video:
ebay.us/9FDswJ Speed Sensor Kit

[@Milkman3572000]

The brake light switch has a circuit that controls/ prevents torque converter lockup. Saw a good video somewhere with schematics.

[@harryholiday5356]

Haven't seen an "eat more possum" since back in 1973 in Texas. Reminds me of my youth.

[@rustedroostershop]

It gets attention for sure.

[@bigredyt9563]

Driver or passenger side???

[@rustedroostershop]

Driver