i have narrowed a ton of housings and there is a place not tooo far from me that will respline stock axles, but this is generally only in low hp applications. Even though i have had many stock 28 spline ford axles handle 700 hp in 3000lb applications with no problems...i dont recommend it! I have seen several issues with moser axles and they have never helped with resolving them. Every axle i order is strange, always fast, friendly and a great product! This is just my personal experience... i am sure there is plenty of opposing opinions and i dont mean to offend anyone by my post