USA Standard Full Spools are a cost-effective way to convert a diff to 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each USA Standard spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outstanding choice for dedicated off-road and drag racing vehicles only.
Features & Benefits:
Fits Ford 9" with 35 spline axles
Small bearing journal to fit 2.968" and 3.062" dropouts
Provides 100% traction to both wheels at all times
If you are having trouble choosing the correct USA Standard Gear part, or experiencing issues during or after installation of this part, USA Standard Gear's technicians are available to help answer your questions.
Phone: 1-866-748-0902 (M-F 6am-4pm PST)
Attention California Customers - Not Applicable
OEM / Interchange Numbers: YPFSF935SMALL
USA STANDARD GEAR Warranty Information:12 MonthsWarranty Details
Additional Resources
USA Standard Gear Technical Support