The Z33 OEM diff cover uses a single stud at the rear which is prone to breakage in high grip/hp setups. We make a diff brace which does help but a dual stud cover is the ideal solution.

The GKTECH Z33 350z Extended dual stud diff cover has been designed for use in dual stud configuration but unfortunately, the subframe doesn't have a provision for a second stud which is why we've made the option of either a bolt in or weld in secondary bush. 

For those who already have a solid diff bushing installed, we've made it possible to order only the secondary bush itself - with options for solid OR polyurethane bushings, including an all NEW weld in polyurethane option. For best results we recommend use with dual solid diff bushes. 


NOTE #1: Primary bushings are sold as a 3pc set and include the bushings for the front ears of the diff. 
NOTE #2: Using a solid bushing as the primary bush requires use of a solid secondary bushing etc.
NOTE #3: Steel weld guide is optional as we do include a cardboard template with the diff bush.