4x4 Suspension is what Superior Engineering is known for, we have built many 4x4 competition trucks that consistently win in 4wd competitions and they are all using Superior Engineering 4x4 Suspension. Superior Engineering manufactures all of our Suspension components at Burpengary.Our 4wd Suspension Kits utilise such brand shock absorbers as Tough Dog, EFS, Bilstein, Rancho and Superior Engineering has Just released Our new 2 inch SRC range of remote reservoir Shocks built to suit the everyday 4wd to the extreme racing trucks. More on the SRC Remote Reservoir shocks can be read in our website. Superior Engineering's 4x4 Suspension range only uses the highest quality materials to manufacture our products.