Pops,
Have you thought about replacing the floor registers with ones that have a damper so you can control the airflow? Doing so you might be able to reduce the airflow to the front of the coach and thereby increase the airflow to the rear.
Also, I pulled the wooden air vent off my 37ND one day and found a 2 inch hole in the furnace duct running to the rear of the coach. I used some aluminum furnace tape and taped that duct and it increased my airflow to the bedroom by about 100 percent. Apparently when they installed my fireplace they put a hole in that duct and it never got repaired until I came across the issue one day while snooping around.
__________________
Dave
US Army (Ret)
2020 Entegra Accolade 37TS
2019 Jeep Grand Cherokee Trailhawk (Toad)
FMCA - F432054
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