My tranny guy said driving even a mile or more with your tv cable unhooked will burn out the clutches in third and od. That is prob not the news you want to hear but i would take it to a tranny shop and have them put the correct tv pressure on it. The proper pressure is 33-35 psi i know cuz i just had my pressure checked for piece of mind and he set it at 35. After they set the pressure have em test drive it and see what they think. $30-40 is well worth knowing that the pressure is right. There have been acouple of trannies for sale on the forums or, I would think about future power goals and maybe get yours rebuilt with heavier duty parts depending on your budget. Just my 2 cents.
I hope this helps,
Mark