thanks again to j cAT, 777stickman, Schurkey for the reply's.
we took the truck to a transmission shop. they said the torque converter is bad.
with that said, we will be rebuilding this tranny. we will also be putting dexron VI, thanks for the tip j cAT.
not sure how this rebuild will go but, we are looking on line and so on for tranny rebuild kits, complete rebuilt trannys and so on.
we would really like to just switch out this old tranny for a rebuilt tranny.
one question, how can i tell if this tranny is a 700r4
any suggestions would be welcome.
thanks again