Join Date: Sep 2000
Location: Shrewsbury, MA, USA
Yes there are slight differences around the spring pockets between the 67/68 style and the 69 style. There is an extra stiffener on the front side of the spring pocket on the 69 that the 67/68 sub frames don't have. Its used with the lower control arm rubber bump stop, which moved to the front of the control arm for the 69 model year. In 68 the rubber bump stop was on the back edge of the arm.
The front sway bar mounting bracket holes are also in a different place on the 67/68 subframe than on the 69 sub frame. The 2 holes are about 1" and 2" away from the spring pocket on the 69 and probably 6 to 7" away on the 67/68 style.
You won't run into many problems if you get a replacement subframe with all the parts attached to it (A-arms, sway bars, etc) but if you try to stick a bare 69 subframe under a 68 and use all the 68 parts (or visa-versa) you will run into interference problems with the swaybars.
Also very early 67's don't have the big 3" hole in the front inner horns that support the bumpers, like later 67's and all 68 and 69's do.
1969 Indy Pace Car
350/300HP RPO Z11