Not sure what part you are saying has a hole in it. The band servo is round the governor cover is round... what area of the tranny is this cap?
There is no threaded band adjustment on a 700/4L60 tranny.
The output shaft will move side to side .
If the tranny has slipped much, there is damage to the frictions inside
A whole list of items
were changed in the mid 1987 & later 700/4L60 tranny. Input sprag design, input drum, & the valve body where changed some what
Originally Posted by 91zman
ok guys i started to take out slipping 700r4 and put in th350 . talked about this on my last post. I decided not to after replies. the man said that the trans was jest rebuilt but leeked fluid when i bought the car. he said it still slipped. when I took it out the shaft where the drive shaft goes you can move it all around. and the littlt cap about 3 inches around has a small hole in it and i beleive that is where you adjust the bands? the pan has no metal fragments on the magnet does it loose pressure from that hole and make it slip. please help