Does anyone know where I can have the divided power lane on my 1959 trackmaster 4vl repaired or rebuilt? The axle seems to be working fine now but I understand from reading posts here in the forum that they tend to brake down a lot. What fluid is recommended for the axle for temperatures above 0? The manual says 80w-90w hypoid differential lubricant. All I can find is 80w-90 high pressure, detergent axle fluid made for truck rear ends.