GKTECH Z33 350Z V35 Extended dual stud diff cover install kit Accessories only (Poly Weld In) (Order in)*NOTE* Currently is an order in product from GKTECH In Australia. Takes roughly 3 4 weeks Listing is for: 1x Polyurethane Diff Bushing 1x Polyurethane Secondary Diff Bushing Weld In Install 1x Weld in sleeve for secondary poly bush Here it is! The one stop shop for installing a dual stud diff cover in your Z33 350Z and V35! 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