I have tried for hours to disconnect the servo clip to remove and get to the blower motor. It looks simple but the location is to thefront near the firewall and I get a better view with the servo in re-cirulate instade of fresh air. But i see no way this lever unsnaps from the case short of breaking plastic. If I could figure out how to remove the glove box I might be able to get to it. I have the picts and it looks simple but I see no release for this metal lever from the lower fan housing on this 1990 ls. I need some tips bwfore I haul it to a body-shop please.
I had an invasion of red squirrles when I let the car set over the summer. I have even removed the belly cover from under the engine to get it ALL out. I just purchased some hollow-points

 

I'll look when I get to work, but I am pretty sure the whole dash has to come out, then the whole blower case comes out of the car...

 

If that is the case than there is a lot of bad info out there LOL And I have a 1990 400 for sell cheap.
I have access to the lower fan case and have it down but not out do to the lever not separating from the case
I also have put the setting into recirculate which gives me somewhat better access to the lever. Yet all the posts said fresh was the proper setting. This is a 1st gen. ls 400 w/ 185k that runs like a clock.
Today I hunt for squirrels !!!!!

 

It's in the body shop. This is something someone younger can do who can still see.
I'm selling the car soon anyway but thanks for the input everyone.