In all my years of doing this,I don’t ever remember seeing bolts like this. An original,unmolested 71 GS chassis had these 2 bolts,one on each side,where the lower control arm bolts to the axle. Has anyone ever seen bolts with a head like this?
I have not. The ones that came on my '71GS455 were the more common/ normal ones. Is your car Flint or ??
They are the "72 style" and are all over around here. Is your car a late 71, and was it by chance made in Framingham Mass? Duane
I have seen one set on a completely stock late built 71 GS 350 car,but they were in similar condition It was a Framingham car like Duane asked..All of the other cars we parted had the standard looking bolts though..
My Flint built car has similar bolts on the front control arms. They looked like a torx bit. I'll try to get photos.
Those bolts were not on my '72 GS when we dismantled the suspension hardware. By looking at the rubber bushings & rust on the bolts, the bolts appeared to be orig. ???
They are definitely original. This chassis still had the original spiral shocks with the original shock bolts that some of you were looking for.
They are actually a hex head bolt with a smaller hex head on the end. You guys are finding all my secrets. Duane
Wow that's even a different bolt. Never saw them before. For 70-72 A-bodies The "home plant" for the Philadelphia area is Framingham Mass, so unless it was a convert., Stage 1 or GSX, all the cars here came from there. The bolts I have seen would be off the 72 Framingham cars. Flint cars often use different nuts/bolts then other GMAD plants, so maybe that is what is going on here. It's a matter of jurisdiction, Buick ran the Flint plant, while GMAD ran the other plants, and each bought the parts/fasteners they wanted. Duane
Duane - When did GMAD (General Motors Assembly Division) take over the other Buick plants? I heard they started in Ohio in 1968 at the Vega plant.
Neither my convertible (flint) or either of the two 72 GS cars I parted (one flint, one fremont) had those style bolts, just the regular style...