Best way to straighten a C4 trans pan?

[f2502011]

My C4 pan is warped. Especially on the corners. I know about the pan reinforcement available and that is a possibility, but what’s the best way to get it back straight and flat? Does anyone make a reproduction that has the threaded hole for the dipstick/fill tube? I see the basic pans available but there’s no provision for the dipstick tube.

 

[gnpenning]

A straight flat surface. Watch a couple of videos , even blacksmithing ones. I don't think I could type it out. You are moving metal back in the direction it came from while supporting in the flat surface. When straight use the ball end of a ball peen hammer to tap the bolt holes in line. This also works on valve covers and oil pans.

Hopefully someone else has pictures or video links. It's not hard to do and shouldn't take very long. Practice with something else if you need to.

 

[MarsChariot]

Sometimes the holes get deformed in a conical shape, too. The best way to get the holes and the surrounding flat is with a couple of stiff washers on either side and a through bolt tightened until the metal is returned to a flat surface. Then the flange itself get a careful treatment as described above.