4L80 having trouble shifting! Shift Solenoid install!

This a 2000 GMC 3500. It has a 454 big block v-8 with a 4L80 automatic transmission. It was having trouble shifting out of 1st gear! We put new shift solenoids in it and it fixed the problem! This video also showed how to change the fluid and filter in a 4L80e.
Wix transmission filter part number - 58608
Shift solenoid part number
1-2 solenoid - acdelco - 24230288
2-3 solenoid- acdelco - 24230289

[@NFGarage42]

Good video mine stopped shifting after one day that I jumped the battery. I'm thinking I dried the shift solenoids or the harness. Great video

[@mrhamburger6936]

Apparently the solenoids must be hard to get it you didn't show how it was done

[@JasonY02]

Size are the screws ?

[@Humanityconfliction]

So what about the solenoid for shifting to fourth gear?

[@DennisBerrisford]

Did that fix the problem?