Pontiac GTO Forum banner

1 - 5 of 5 Posts

·
Registered
Joined
·
2 Posts
Discussion Starter #1
208328_1036668366411_2436374_n.jpg

hood open.jpg I'm putting Pontiac Rally II rims & new tires on my 1968 Ram Air II GTO........

Front: Rally II 60-series 15" x 7" (4" rear space) with 235-60R15 tires (26" tall)

Rear: Pontiac Rally II 60-series 15" x 8" (**4" or 4.5" rear space**) with 275-60R15 tires (28" tall).

** The rear rims are available in 4" or 4.5" rear space.

My question: Will the 4.5" rear space make the tire rub on the inside? Can I get away with 4" of rear space running 275-60R15's?

Car has all factory chrome trim around the rear wheel openings.

Thanks
 

·
Super Moderator
Joined
·
5,790 Posts
The only way I know to tell for sure would be to get yourself one of those "Percy's WheelRite" tools (google it) and measure.

But... on my 69 when I measured it, 15X8 on the rear with 4.5" backspacing was exactly what I needed to center the tire perfectly.

Bear
 

·
Former Moderator
Joined
·
2,895 Posts
The 4.5" backspace should be perfect IMO. I run a 9.5" wide rim with 5.5" backspace and a 12.5" wide (spec) tire so you should be fine.

Love that old school look though! But I can see why you'd want to get the tires in the wheel well.........:wink2:
 
1 - 5 of 5 Posts
Top