Another Air Bag Question

[Jeff August]

I am trying to find out the Firestone number for air bags on our 1980
Bird. Blue Bird part # 0961425 front and 0961250 rear is what Blue Bird
says are the part numbers but, the Firestone book dosn't cross
referance these #. Are they (Firestone #) 8992 front and 9039 rear? I
tried to get the Firestone # off the bags but can't find them with all
the cracks.Would like to order them but don't want to get the wrong
bags.
Thank You All Very Much For Your Help!
Jeff & Michelle August
1980FC35RB
Plymouth Wi.