Featuring a 2.5 DOM body and a machined in a large ACME thread to ease preload adjustment. The upper shock end is made with a High Pressure cast system specifically designed with strength in mind. The lower rod end is a wrought material to withstand the load placed on a coilover. Both ends get a high quality spherical replaceable bearing. A fully rebuildable and revalvable piston/shim arrangement gives endless possibilities. The seal head is set up with Viton seals, good for temps of 204 degrees celsius (400 degrees fahrenheit). The plated hardened chrome 7/8 shaft ensures you that your shock is made for the long haul. The upper spring preload adjuster can be easily adjusted using a simple strap wrench and an allen wrench to tighten it. The large remote reservoir uses a floating piston to keep the oil and air separated to ensure more consistent performance and aids cooling. Shock lengths vary from 10-18 inch