removing suspension bushes

Going to renew suspension bushes on my 90,any tips for getting the old ones out and new ones in.I thought about getting one of them bushwakas ?,then i seen the price and ,i think ill pass,i,am going to use OE bushes.

yer can drill a series of holes throu the rubber then use a hacksaw to cut the outer shell, just dont over do the cut then it will knock out with a old screw driver and a hammer.
to install em you can make a tool up using a piece of threaded rod some nuts, big washers and a suitable sized bit of pipe