If it is a banjo car the tailshaft won't fit. You'll need one of the following tailshafts:

HQ V8 (except 350) wagon, ute, van or Statesman.
HJ-HZ V8 (except 308 auto) wagon, ute or van.
WB V8 ute or van or Statesman after about 11/81.

You could swap the banjo across but it'd just be easier to get a V8 tailshaft.