High Lifter Products DHT Axle is set apart from our competitors because it has DUAL HEAT TREATED Technology. The two most critical areas of an axle that can break, are the cage and housing. High Lifter took those two areas and concentrated it’s dual heated treatment process. Targeting these areas produced an axle that is tough, resistant to wear and has even extends the lift. Our DHT axles come with a One-Year WARRANTY. Plus, complete the warranty card and you get a free T-shirt.