Weather Guard General Service/Contractor Van Package Full-Size GM Savana Chevrolet Express 155" Wheelbase Model 600-8121LWeather Guard General Service Contractor Van Package Full Size GM Savana Chevrolet Express 155" WB Model 600 8121L Designed for contractors, remodelers or other general service providers, the Model 600 8121L van package for Full Size, 155in wheel base GM Savana and Chevrolet Express vans provides adjustable cargo van shelving sized to fit the commercial van interior, 6 medium storage bins, a 5 drawer secure storage cabinet, and accessories. It