I took a look at your 2006 Starcraft Toy Hauler and it appears that you have the Bargman LED Clearance or Side Marker Light 47-59-002 as your taillights, which then you'd need the Replacement Amber Lens for Optronics MC32 or MCL32 Series Clearance or Side Marker Trailer Lights # A32AB for a replacement lens.
This lens measures 4" long x 2" tall x 1/2" deep, so you'll want to double check with your current lens to be sure. If it turns out you need a different size or you have a different... view full answer...
The Thule hardware # TH04997 kit is a confirmed fit for your Thule Mountaineer roof cargo box.
I have linked the review video of this replacement hardware for your convenience. view full answer...
Your measurement of 1-1/16 equals to 1.0625 inches and most likely the bearing is # L44649 and the inner bearing is # L68149.
With that said, I think bearing kit # BK2-100 will work, but I strongly recommend looking at your bearings, races and seal for part numbers or taking a few measurements.
The best way to determine the correct parts for your 3,500 pound boat axle trailer, is to remove the hub from the trailer and either get part numbers from the inner and outer bearings and races,... view full answer...