I know the shudder issue in all or lower gears is usually the torque converter but cannot find 5th gear shudder at all? Can keep it in 4th and the trans shift like new. No codes related to the trans at all. Appreciate any and all info. TIA

not sure if this helps but my tranny was acting up a while back and I cleaned the shifting solenoids and replaced the filter and it’s going strong has not acted up again.

Was it a 5th gear only situation? Appreciate the info.

no problem. Did you find out what is was?

No, the car just sits now. Gave my Ram to the daughter so she can have reliable transportation. Hate to sell the TL but probably will have to. Still such a strong car, just not wort it to us to put any money into it.