First, check whether the product offers 2-3 inches increased requirements, some products provide only 2-inch rise, barely used to a 3 inch rise easily to limit damagein the cross-country.
Second, the shock absorber Center telescopic Rod diameters up to 16 mm, this isa basic indicator of strength.
Third, the shock absorber upper and lower sleeves for high strength polyurethane,which is whether he could guarantee high strength for a long time an important basis, because the rubber is difficult at high intensity for long time use.
Shock absorber is used to suppress the spring rebound after shock-absorbing shocks and impacts from the road. After a rough road, despite the shock-absorbingsprings can filter the vibrations, but the spring itself there will be movement and shock absorbers are used to suppress the spring jumping. Shock absorbers were too soft, the body would be jumping up and down, shock absorbers too hard it will result in too much resistance, preventing spring work. Shi Xiaohui said about in the process of modification of the suspension system, hard shock absorbers to match with hard spring, and spring hardness is closely related to vehicle weight, heavier vehicles generally use stiffer shock absorbers. In the modification need to keeptrying, to design the best combination of shock absorbers and springs. Professional conversion shops generally can owners find the best match.