Check to make sure the rear axle has not been swapped. Factory pattern was 5 bolt with a 4 3/4" center. 5 on 4-3/4
Buick - Regal, Century, Special (most mid-size) '64-'80's
Chevy van
Chevrolet - all (exc as noted elsewhere) '49-'89
Corvette all
Corvair '65-'69 5-bolt
GM compact and midsize
Oldsmobile - 442, Cutlass, F-85, Toronado
(most mid-size) '60's-'80's
Pontiac - GTO, LeMans, Firebird, Grand Prix
(mid size) '64-'80's
5 lug , 4 3/4" center
Yes. It will bolt right in with 1968 motor mounts.
5 X 4.75
No, Mustang wheels will not fit a GTO the bolt pattern is 5 x 120.65 mm (4.75 inches) on a GTO; it's 5 x 114.3 (4.5 inches) on '94-up Mustangs. Prior to that, the Mustang had a 4-bolt setup. Lastly, the wheel offset is different on each car (offset might be cured with spacers, but it's a mute point with the difference in bolt spacing).
theres one on E-bay for sale right now for $500, check it out.
Wallace has a good resource for torque specs. Check link.
pontiac made the GTO the year of the car started in 1968. i would recomend the 1969 GTO judge
Looks like it will fit. 2006 pattern is actually a 5 x 120mm. See discussion in link
Gto
30 degrees
The Rear Axel for a 1969 Pontiac GTO is 60"
17 inch
5