O-rings on transmission pump bolts?

What material are the o-rings made of that seal the bolts on the pump of a 700R4 transmission? I already tightened down the set that came with my rebuild kit, and they are now ruined. Are they just rubber? Or teflon?
Thanks in advance.

deltech2009-05-10T09:12:43Z

Favorite Answer

They are just plain rubber orings,any will work if they are the exact size of the old ones