Topic: Strut Rod > Lower Control Arm Bolt Head Markings

[CobraSpeed]

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[suskeenwiske]

This is the original Nut and Bolt from my '65 6-Cylinder Dearborn Coupe, January 1965. The Reproduction Bolt Head is close but lacks the Ring at the outer edge and their Nut is nowhere near the same. I've seen your Bolt as well on other Mustangs and may be correct for 8-Cylinder cars or possibly different based on the Supplier, Running Changes, when Built, which Plant, etc. Hopefully someone else can add clarification; I'm no where near expert enough for this kind of detail.

Thanks for posting.

Ray

[jwc66k]

Those bolts, 379779-S8, came in grade 6 and grade 7. My Oct 65 San Jose "K" Fastback has (and had) grade 6 bolts. As long as all four are the same grade on your car you should be OK.
Jim

[CharlesTurner]

This is the original Nut and Bolt from my '65 6-Cylinder Dearborn Coupe, January 1965. The Reproduction Bolt Head is close but lacks the Ring at the outer edge and their Nut is nowhere near the same. I've seen your Bolt as well on other Mustangs and may be correct for 8-Cylinder cars or possibly different based on the Supplier, Running Changes, when Built, which Plant, etc. Hopefully someone else can add clarification; I'm no where near expert enough for this kind of detail.

I've seen that same bolt on many '64 1/2 - '65 cars.  As Jim says, both were probably used.  If one is certain that the bolts have not been changed, then they can be re-plated.  Those were typically clear zinc.

[suskeenwiske]

+1 on the Zinc. My Bolts still have some of the Zinc clearly visible.

Ray