4L80E running hot help needed

[72MARIO]

I just finished a 6.0 4l80 swap. I have a massive cooler for the trans mounted in the front of the grill. Its a 30,000 btu cooler the lines do not go thru the rad cooler . -6 AN lines with correct fittings for 2004 4l80 from transmission to cooler. They are routed away from exhaust min 5" from manifold.

I am pulling a 25' trailer approximately 4500-5000 lb. In the tune we disabled torque converter lock up until 50mph. The idea was for smooth power without locking and unlocking ... gm might have known what there doing better than me... The air tempature was 95 outside. The trans runs 160-175 towing on large grades at 65-75 mph. Tempature is provided thru the Scan Gauge 2 unit

The problem is accelerating up large hills/grades where the speed limit is 35-45 mph tempature hit 224 very briefly but was averaging 218 I should note engine tempature also went from average 194 to 215 in this situation .

Could disabling the lock up be contributing to the trans tempature rise ? Or am I just being over concerned with temps in the 220 range ?

Any help would be appreciated as we are 12 hours or so from home

Mario