The only centrifuge training received by Shuttle astronauts was a 3g ride in the Brooks Air Force Base facility as new astronauts, followed by optional use of the facility to verify ascent/entry suit fitting.
Description by Clay Anderson from here
Shuttle training sent us to a San Antonio Air Force Base for a single
ride in their centrifuge. The Shuttle's ascent and entry profiles
were flown, to give us the exposure to what 2-3 g's would feel like.
Actually no big deal, and just "checking a box."
Brooks AFB closed in 2011.
Anderson goes on to comment about Soyuz centrifuge training:
In Russia I flew their centrifuge as well. Since I was a ShREC
(Shuttle Rotating Expedition Crew Member), I only did the Soyuz
re-entry centrifuge profile, in a manner similar to that of the
shuttle, pulling the requisite number of g's at the appropriate times.
However, we also did some separate runs, which reflected a ballistic
Soyuz re-entry profile. This re-entry, a contingency; is extremely
dynamic. We pulled 8 and 10 g's for short periods of time, reflecting
what would be experienced in the event of a failure driving us into
(excerpt from Shuttle Crew Training Catalog)