my 88 t4 has been out for a while, ive been too busy with work to fix it. i was riding and my gear shifter fell off so i pull into the garage and instead of loosening the screw on the gear shifter i pound away with a hammer to put it back on and next thing you know a $h**! load of oils pouring out from the other side of the gearbox?? im guessing the gear shifter shaft caused the quarted size hole on the other side?? so i need to know if this dameged anything else? and how i can patch the whole? (jb weald and sheet metal)?? also how much and what kind of oil???