While your 2015 Tracer does fall under the Forest River umbrella it is listed under Prime Time. I do see most models use 3,500lb tandem axles which will use either the Standard # AKEBRK-35 or Self-Adjusting # AKEBRK-35-SA brake kits per axle. You can verify your axles by checking either the information tag on front corner of your camper or by checking to see if the axle tags are still in place on the center of the axles on the back side of the tube.
If you have a different axle capacity... view full answer...
To determine the slide topper size you need you'll measure from the outside edge of the flange to the outside edge of the other flange. It's then recommended to have at least 7" of clearance on each side to ensure the arms of the topper don't come into contact with anything else. If you don't have enough clearance you'll want to go down a size.
If the flange to flange measurement of your slide-out is 97.5" then you'll want the Solera RV Slide-Out Awning - 8'1" Wide - 48" Projection -... view full answer...