Is this the drawing of the assembly at the back axle that adds brake pressure as the cargo area is loaded? Anyone have any idea about the steps of measuring to make sure the correct spring is in place? My 280 has a 3" lift and I don't know what distance is to be measured to check the correct spring is in place or to order a new one ...
If anyone can recall what I should search, I will try searching the archives for the information.
I didn't even know there was such a thing ...