Join Date: Jun 2007
Location: SAINT JOHN, NB, CANADA
28 spline axles in 31 spline carrier
I have searched, but unable to find an answer. I have a 97 Cougar and can get a 3.73 gear set and 31 spline ls for free. Now, I have found by searching that the pin diameter is different on the 31s, but are the 28 spline side gears interchangeable with the 31s, or in other words can I use the 28 spline side gears with the 31 spline gears on the pin? Any help you can give would be great. I know the simple answer is get a 28 spline diff, but the price is right on this!