The heat treatment is also the last stage of the strengthening process for the rod. Thread is then cut into the end of the rod in preparation for the piston to be fitted further down the line.Ĥ: The parted rods are cleaned thoroughly and put through heat treatment in preparation for chrome plating. The stretching process helps to straighten the rod, and is integral to giving the steel its core strength.ģ: The drawn and straightened rod is then parted on a lathe to predetermined lengths. The rod begins life on a cotton reel and is drawn out, stretched and cut into one-metre lengths. If the application demands it, the ends of the newly formed tube are swaged to size.Ģ: While the shock body is being formed, the shock absorber rod is formed from mild steel. Tough Dog shocks are a twin-tube design, meaning that the outer body tube contains oil, but is not part of the piston’s working surface.
Rolling the tube and seam welding is a traditional, cost-effective way of making the tube. Twintube (eg Koni) vs monotube (eg Bilstein).1: The outer body is made from sheet steel, is rolled, then seam welded to size. Twintube (eg Koni) vs foam cell (eg Toughdog) All high performance shocks across manufacturers are based on this style of design. As they heat up, the gas pressure increases and the shock improves. Koni is a nitrogen twin shell - when these overheat they fade but will recover once cooled down again.īilstein is a monotube - these do not fade due to high gas pressure. TD is a foam cell - note that many peoples experiences are that once overheated the foam breaks down and the shock fades and it does not recover to normal operation once cooled. These ones are quality and will last.įor operation check out the propaganda videos links below, but they will give you an idea. Premium shocks are the Bilstein and Koni. You've got 3 different shiock designs there. I'll get the front and rear of the defender weighted and add any future mod weight before I order to make sure I get the right springs.ĥ0MM PREMIUM KIT WITH KONI SHOCK ABSORBERS | Suspension Mega Storeĥ0MM PREMIUM KIT WITH BILSTEIN SHOCK ABSORBERS | Suspension Mega Storeĥ0MM PREMIUM KIT WITH TOUGH DOG SHOCK ABSORBERS | Suspension Mega Store
Also is the steering damper worth upgrading? Thinking Tough Dog return to centre damper. My brother in law is a mechanic and will help me install it. I'd love koni raids but can't justify the cost. Currently running 33" MT tires but may eventually go to 35". I'm about to get a 2" lift for my 2013 Defender 110 but I can't decide what suspension to go with.
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