Driveshafts on upcoming AWD vehicles are retained by a retaining clip inside the splines, which locks onto the PTU or RDM splined shaft. In order to overcome the retaining ring, a large force must be applied against it suddenly. Current retention force of the PTU is 350-450N with the possibility of increasing in the future. Attempts to pry the driveshaft off the PTU or RDM will damage the driveshaft. To prevent damage to the driveshaft, GM-51329-A fits the groove provided on Equinox, Terrain, XT5, Acadia, and Envision prop shafts, and is used with the previously Essential GM-02619-A slide hammer to unseat the snap ring. GM-51329-A attaches around the propshaft, and its two halves are tightened together to seat GM-51329-A into the groove. The slide hammer is then attached and used to remove the propshaft. The removal force is 2000-6000N @ 50mm/min. Unapproved methods will damage the prop shaft.