Rebuilts will have a new seal and bearing. Possibly the impeller changed too to one with shorter height blades, which is not good.
Thing with the rebuilts is this.... Does the divider plate have the correct clearance? Plus is the blades on the impeller the correct height? And if not, how much do you have to beat on the plate to get the correct impeller and divider plate clearance?
We are in the process with Cardone to get this issue resolved for both the 8 and 11 bolt water pumps. And they are willing to work with us and PY to get this done. So hang in there until the 1st week of March after PY and I meet with them.
Good news is on the way, so stay tuned to the stickied 'Chalk up one more for the cast impeller' thread, or a totally new thread.
BTW... This will be good not only for us Pontiac guys, but good for the Buick and Olds guys too.
__________________
Gary
Get in, Shu
T Up, Hang
On
!
Member of the Baltimore Built Brotherhood
MY GTO built 4th Week of March 1966
"Crusin' Is Not A Crime"
Keep yer stick on the ice.