Yukon High Performance Replacement Ring & Pinion Set Dana M275 3.31 Ratio 5 inch grinder Upper Intake Seals Injector Return

Upper Intake Seals Injector Return Line Coolant Pipe O-Ring Left & Right Fuel Rails

⚠️ We strongly recommend installing heavy-duty 60lb valve springs if you plan on revving to 3

We recognize that during self installation one can impart a curvature between the two rigid panels and throw off the whole build surface tolerance

Servicing is recommended every 5-7k miles with only a small amount of grease per joint—over-greasing is not recommended

1987-1991 Ford E-350 Econoline Custom 1975-1978 Ford E-350 Econoline Northland 1983-1998 Ford E-350 Econoline XL 1999 Ford E-350 Econoline Club Wagon Chateau 1999 Ford E-350 Econoline Club Wagon Custom 1999 Ford E-350 Econoline Club Wagon XLT 2000-2006 Ford E-350 Super Duty Base 2006 Ford E-350 Super Duty Chateau 2000

Yukon High Performance Replacement Ring & Pinion Set Dana M275 3.31 Ratio 5 inch grinder Upper Intake Seals Injector ReturnYukon Gear & Axle high performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state of the art design, advanced heat treating techniques, and leading edge quality testing processes to ensure the structure and surface finish meet exacting specifications and quality standards. Yukon offers its Y. E. S. Plan, a lifetime, comprehensive, no questions asked protection plan covering your gear