17x9.5 with 5.5 Backspacing on 4/6 Drop?

[chevychase]

I did a bunch of searching first, so please don't beat me up too bad! I don't have a lot of posts becuase I always search and usually find my own answers thanks to this awesome forum! I had this posted in the general section and thought I might get more responses here.

Question: '67 Automatic Truck Lowered 4/6 with '71 5 Lug Front and '71 5 lug Rear End. Wheels are 17x9.5" on all 4 Corners with 5.5" Backspacing. No tires yet, so I'm open to sizes. I'd appreciate ANY feedback if these rims will work and/or tire sizes. Thanks in advance guys!