It sounds like you're saying you have a 6 lug wheel bolt pattern on your 2006 Sunnybrook Brookside 275FWRKS. The typical brake mounting flange on a 5,200 lb axle is going to have a 5 bolt pattern. Assuming that is the case, you can use the Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies - 5,200 lbs to 7,000 lbs # AKEBRK-6. If you would like self-adjusting brakes the # AKEBRK-7-SA is also available. If you have a 6 bolt pattern on your brake mounting flange then we do not... view full answer...
Yes, there is an option for you to use the much higher quality tankless water heater as well as a door that is going to work for your 15-1/2" x 16" cut out. What you will need for the water heater itself is the Furrion unit you mentioned:
- Furrion RV Tankless Water Heater - Gas - Automatic Pilot - 60,000 BTU # FR93FR
Then for an access door, if you take a look at the part of the instructions I added, you can see which doors fit specific cut out sizes, and since your cut out is 15-1/2"... view full answer...