Transmission shifting

Hello everyone thanks for the add, I'm coming to try and get some info on understanding what my transmission is doing in between shifting it's shutters when shifting from 4th to 5th it started when it shifted to 6th but when I put it in standard shifting and shift it like that it doesn't do it just some ideas or if anyone has experience this situation again anything is helpful I am a little mechanically inclined?

 

Welcome from LA (Lower Alabama)! I would ask that in the Ask The Toyota Mechanic thread. There's some pretty smart guys in there, including some Toyota master techs.
https://www.tundras.com/threads/ask-the-toyota-mechanic.2404/

 

Have you checked the transmission fluid level? Honestly sounds like torque converter shudder. Ever had the transmission serviced?

 

Welcome from NY.

 

The 2007 and 2008 Tundra had weak spring dampeners in the torque converter. Combined with this weakness and flex lock it would overheat the torque converter. Usually they tried to reprogram and ultimately installed new torque converters. I had a shudder in my original transmission but replaced it with a 2010 when it failed.