PN 7010-1 – VW Torsion Center. This center is a weld in center that is used for new chassis production. It is 2 1/4″ OD and is used for a 2 1/2″ OD x .125 wall new torsion housing. It is made from 1018 steel and has the standard 40 tooth inner spline. Take a look at our Quick Adjuster PN 7000 for a weld in adjuster that is built for play buggies and for light race cars. For serious race cars, adjuster PN 7020 should be used. It is built for 3″ housings.