The Furrion Electric RV Fireplace with Crystals - 34" Wide - Recessed Mount - Black # FR88FR has a cutout measurement of 26-1/4" wide x 16-1/4" tall x 5" deep. The depth measurement is to the back of the unit and I recommend leaving another inch or two for your plug connection and some air movement. Ellen shows you these measurements in the attached video. view full answer...
To select a cushioned equalizer for your trailer suspension to replace the standard equalizer you'll use the mounting hole spacing on your original part as a guide. The part # K71-652-00 that you referenced replaces a Dexter part 13-104 and its hole spacing can be seen in the linked photo. Your equalizers should also have a part number visible.
This item actually offers a 1-inch range of compatibility, from 5-1/4 to 6-1/4-inches on hole centers. You'll also want to note the axle weight... view full answer...