04 Lexus 470 has a clunk when letting off brake to take off at light or stop sig

What is your question?

My 04 Lexus 470 comes to stop at light then when I let off brake to take off it jets or clunks like someone is bumping me from behind.

What makes this problem better or worse?

Nothing u do makes it better or worse

How long has your 2004 Lexus GX470 had this problem?

3 months