Wife has a 2017 Colorado ZR2 with 25000 mile on it and one of the rear shocks blew. Tore it off and figured I'd rebuild it, but can't find seals. The main seal was cracked and brittle. Can't believe the seal is only 4 or 5 years old. Anyway I can send them in and have them rebuilt for over 3800 a set exchange, ripoff. Anyone know where to buy seals for these things. If not switching to King.