Question about '68 Camaro

My Dad has a 68 SS, and I am looking at getting him a pair of 6" rallye's for the fron tnad 10" for the rear. My question is this:

If I get the 10's for the rear, will there have to be any cutting done so they will fit? Or will spacers do the trick?
Thanks

I had a 67 with 8" reallies in the rear with 255's 60x15 and it did rub when I had a person in the back seat. 10's might be a wee bit large for the wheel well.

Go to www.pro-touring.com for wheel help. There are alot of very intelligent people there who will be more than willing to help. The site is based around first gens primarily.

Good luck,
William