leave the stock A-body perches on the 43" centers
weld another set on inboard (if they are not in the way)
they can be removed to go back to stock A-body specs
I have never been able to afford an A-body housing..but have had B-C ones cut down to A-body specs for less than the going rate it seems most times
any more I grab any housing and axles I can get
just to have them for a cut down if need be
doing the home work pays off
i found that an A-body 8 3/4 will bolt in a 85 truck and tuck 12" rims under the fenders by tubbing the bed to the frame rails and useing stock car shock plates and u-bolts
all depends on what your doing with them as far as size IMO
the B-body housing in a 85 truck will tuck 10s in there also
IMHO that just made an A-body worth more as its got another use on a more modern chassis
use another and throw it over in the corner..you may use it in a truck some day
i did cause I had it
went and bought the truck just to put it into
I would not molest a true stock A-body 8 3/4 with the 1 3/4" brakes thats uncut...but finding some one that will buy it is another story
there are plenty that no one wants to cut down and use more modern axle flange/brake combo on