'92 blazer tranny problem

[sunnyc123abc]

Hi, my dad has a 92 blazer and im not sure wat tranny is in it, but i think its a 700r4 (4l60) correct me if im wrong. anyways its shifts really slow, and i was wondering wat the problem might be. thanx

 

[1979jimmy350]

first check the fluid level and the adjustment of the TV cable. If it is still not shifting right you might have some internal problems