Billet Specialties Win Lite Wheel - 15 x 3.5" - 1.75" Backspace - 5 x 4.75" - Black/Machined 72000010 Two are required and should

Two are required and should closely match bump spring I

size from chart

Hundreds of lbs under the SFI upper neck tension threshold

Pit Stop USA offers Zamp NC-40 SFI Neck Collar - Gray - Adult NC002015A at low everyday pricing

Billet Specialties Win Lite Wheel - 15 x 3.5" - 1.75" Backspace - 5 x 4.75" - Black/Machined 72000010 Two are required and shouldProduct Description: Wheel Win Lite 15 x 3. 5 in 1. 750 in Backspace 5 x 4. 75 in Bolt Pattern Aluminum Black Machined Sold Individually Billet Specialties is proud to be one of the most recognized names in the Hot Rod industry. With hundreds of accessory products and 90 plus wheel styles Billet Specialties has the most diverse product line in the industry and its growing every day. No other billet wheel or accessory manufacturer can make that claim.