Pulling this back to the top mainly because I see Hobo hasn't gotten any responses. Hopefully someone with more knowledge than I will be chime in but here is what I know, right or wrong. It would help to know what year your Buick is. How do you know your pawl is broken or is it worn? I think 55 is the first year you can adjust the pawl with tranny intact and in the car. Otherwise I am pretty sure you will have to pull the rear section of the tranny (without removing the entire tranny) Let us he