Since you have a Dexter Torflex 6k axle on your trailer the lift kit you referenced part # K71-725-02 is a confirmed fit and would give you a lift of 3-1/8 inches like you are looking for. view full answer...
Both the Alpha Systems 1021 Self-Leveling Sealant for RVs - White - 10.3oz - Qty 1 # AL98KV and the Alpha Systems AlphaThane 5121 Self-Leveling Sealant for RVs - Gray - 9.8oz - Qty 1 # AL45KV are good for use on TPO roofing and will allow you to re-caulk your roof accessories for a water tight seal. The only difference between these two sealants is that the 5121 has a longer drying time which will allow you more time to get it exactly how you want. Also, the # AL45KV is gray while the AL98KV... view full answer...
The roof vent on your trailer is most likely for black water tank. The Lippert Components 360 Siphon RV Holding Tank Vent Cap part # LC389381 has a base with a 4" outer diameter. The holes most likely won't line up with your existing roof vent but you can drill new ones, jut make sure to seal everything up with part # 34427034145-1. The Lippert Components 360 Siphon RV Holding Tank Vent Cap is designed for a 1-1/2" or 2" diameter vent stack which is a standard size so as long as this is... view full answer...