is it possible to put a 3rd row seat in a 05' rendezvous if we bought used,without one?

so it is possible then?

of course...but it may Identify your goodie, but you will need to pick up the phone and talk to one of those blokes...they will be helpful for a paying customer...depending on the weight there are a number of shipping options available if you can't pick it up yourself~ talk to those salvagers (local)~

http://en.wikipedia.org/wiki/Buick_Rendezvous

Looks like 60,589 of this model were sold...you should have NO trouble finding the seat that you will describe...perhaps in the color you seek as well~