If you have the 235 with the 4 screw valve cover, you can make spreader bars like I've done and it will never leak again. Get the valve cover surface very straight, however. Use 3/16" thick aluminum, make a pattern and cut with a saber saw and file smooth if needed. Bend in the center so that both ends point downward and of course do one for each screw. Image attached.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
