you're talking about the top portion of the armrest that has the indentation, right?
if so then yes, you can ... they're on backorder though ... GM is hogging all of the available stock from the supplier to fulfill new vehicle builds and warranty repairs
they will become available eventually (hopefully soon - you're not the only one who wants to do this)
actually, they were available a few months ago but there was such a run on the stock from people wanting to do exactly what you want to do that GM ran out of extra stock and is holding tight onto the supply right now
Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at Rippy Automotive
Rippy is a Cadillac, Hummer, Saturn & Saab dealership - family owned and operated in Wilmington, NC since 1946 We offer all forum members discounts on parts and freight - e: email@example.com: 800-RIPPY-22
<-- insert standard boilerplate about posts not necessarily representing my employer, etc -->