Eaton Detroit Truetrac Differential GM 10.5in 14 Bolt 30 Spline 4.10 & Down Ratio

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 1985-2005 Chevrolet Astro Base 1985-1995 Chevrolet Astro CL 1985-1995 Chevrolet Astro CS 1996-2005 Chevrolet Astro LS 1987-2005 Chevrolet Astro LT 2002-2004 Chevrolet Avalanche 2500 Base 2005-2006 Chevrolet Avalanche 2500 LS 2005-2006 Chevrolet Avalanche 2500 LT 1973-1974 Chevrolet C20 Suburban Base 1981-1986 Chevrolet