U can do it on the car... u need to remove the lower arms, put the hub bolt in a screw it in, the hub will fall off, take the boot off, pop on the new one push the CV joint back on the splines as its an all in one unit, nothin to fall out and get lost. then bolt it all back up!
Its eaaasy, tho i found out the hard way! All u need is a boot,, grease and some time
Ciao