2001 5.3 w/ 122k miles.

I would appreciate some help or direction concerning the following issues with my 2001 tahoe. Minor things really but want to make sure I catch these issues before its too late. Any help would be great. Here is the list. BTW I have done some reading on here about MPG. I currently get 15-18 all city driving. Stop and go. I measure every time I fill up.

1. Body sags noticeably to the left. (not pulls to the left. leans when standing still)

2. Horrible slop and body roll. Is this a shock issue or another part of the suspension?

3. Transmission clunk sometimes when sitting still with foot on brake. Doesn't do it often but when it does I swear I think I've been rear ended

4. The infamous back glass hinge issue. I've seen this all over the internet.

5. I have not touched the transmission in 122k miles. Is it time to flush it or does it need general maintenance at this point?

Thank you to any and all that can help.

 

Welcome to the Tahoe forum. Left sag could be a weak spring or torsion bar. Check your sway bar bushings cuz if they are worn out, it could cause your body slop/roll. I think the tranny clunk could be a delayed downshift. I'd just change the fluid and filter on the tranny.