ok to convert 10 x 1 3/4 drums to 11 x 2 1/2 on '72 dart?

I have an 8 3/4 running small bolt pattern 5x4 axles and 10 x 1 3/4 drums in my 1972 Dart Swinger. Can I simply install new large bolt pattern 5 x 4.5 axles and upgrade to 11 x 2 1/2 drums like these?

http://www.ebay.com/itm/Mopar-Rear-...e-assmbd-/380128466519?_trksid=p2054897.l4275