This spindle ID boring tool is for 37 and 38 spline axle conversions on Dana 80; GM 11.5in.; and Chrysler 11.5in. differentials. Cutting bit diameter is 1.630in. No returns.; This spindle ID boring tool is for 37 and 38 spline axle conversions on Dana 80, GM 11.5", and Chrysler 11.5" differentials. Cutting bit diameter is 1.630". No returns.
Yukon Gear and Axle offers a full line of top quality differential tools to save time and money.