These Pro series ring gear bolt kits from ARP are forged from premium-grade 8740 chromoly steel and heat-treated to a rating of 190,000 psi. Specially hardened, precision-ground washers are also included, where required.Victorian Performance Wholesale began as a small speed shop called Epping Street Performance. Today VPW is one of Australia's largest suppliers of aftermarket automotive and motorcycle products. Composed of a purpose built warehouse, boasting modern facilities to accommodate race fuel storage, one of Australia's largest performance showrooms, and all of our administrative and sales staff. Here at VPW we strive to provide the largest and highest quality performance products across a large range of fields and niche markets. Ranging from the smallest of fittings to fully assembled crate engines, we've got what you need.Your packages will usually arrive in approximately 7-14 business days.Deliveries must be signed for, and anyone at the delivery address who receives the products shall be presumed by VPW Australia to be authorised to receive the products.Import charges may apply to your purchase. Find out whether these apply here: http://www.whatsmyduty.org.nz/.