Eaton Detroit Truetrac Differential 30 Spline 1.31in Axle Shaft Dia 3.92 & Up Ratio Rear Dana 44

The Detroit Truetrac was the first helical gear differential ever introduced into the automotive aftermarket as an Eaton brand. It remains the leading helical gear-type limited slip differential in the industry. Detroit Truetrac's proven helical gear design eliminates the need for wearable parts, resulting in maintenance free traction recognized not only for its toughness, but its smooth and quiet operation as well.Proven design, low cost and effective performance all make the Detroit Truetrac limited slip differential the ideal choice for a wide variety of vehicle applications. No maintenance - Just Traction.This Part Fits: Year Make Model Submodel 1977-1979 Ford Bronco Custom 1978 Ford Bronco Northland 1978-1979 Ford Bronco Ranger XLT 1977 Ford Bronco Sport 1977-1979 Ford E-100 Econoline Base 1977-1979 Ford E-100 Econoline Chateau 1977-1979 Ford E-100 Econoline Custom 1977-1978 Ford E-100 Econoline Northland 1977-1979 Ford E-100 Econoline Club Wagon Base 1977-197