The Big Country 3550TSL is the only model Big Country that does not have the rear molded cap. Reason being, the 3550TSL is the only model that has the "upstairs". The upstairs loft is created by eliminating the rear roof break or slope. This model is about 24"-36" taller in the back of the coach to get this extra room upstairs. Our vendors cannot supply us with a rear cap to match this enormous area.
I trust this answers your question. Thank you for your interest in our models.