[me and my metro]

Has anyone installed an electric power steering pump. It looks like Volvo, Mini and a couple others use one. Why I ask is that I would like to tow my GM Diesel truck behind my motorhome. I want to install a Roadmaster invisibrake system and they need the power assist to work. My Diesel pickup has a hydraboost brake booster powered by the power steering pump, not a vacuum booster.