Purchased power steering lines for my ’07 Duramax LBZ through Strictly Diesel and one of them had a defect or failure and leaked within a month of install. I forwarded SD a pic of the issue and they (Dave) immediately opened a power steering line kit to send me a new replacement same day without having to wait for the manufacturer. That’s top notch in my book! Can’t put a price on customer service, I’m shopping exclusively from Strictly Diesel now.