c7za ar

[shlb69]

I have a rear spring with c7ZA AR and would like to know the application for it.

[J_Speegle]

Just the engineering number fits different Mustangs and some Shelby's applications.

The date on the one you have would help narrow down what the original application was.

They were used up into 69 production and possibly beyond

[Bob Gaines]

There is a wanted ad posted in that section looking for a pair of AR or AM marked springs for a 67 car.