Are the NP 420-435 transmissions supposed to take the same gear oil (90W/80-90W) as the diff? Noticed the the "Hypoid gear lube GL5", has Sulphur that can cause corrosion of brass parts, synchros, etc. NAPA dude in town can'r shed any light on it, says "use the same in everythin
In my parts books, in the Propeller Shaft section, lock washers are
shown as being used with the u-joint strap bolts. As Norm pointed
out, a dab of Loctite isn't a bad thing either.
John