Transmission leaks BAD only in reverse??????

Put it in reverse, and fluid pours out HEAVILY from what appears to be the top the the tail shaft area. But wont do it in anyother gears............... any suggestions????? (90 k1500 4x4 700r4)

I suggest you make sure you park where you can get out by simply driving forward!

Probally has a broken case and it is a common problem.I have seen this happen.There are 2 choices to fix this,find another case or take it to someone that welds aluminum very good with a tig welder.