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The P in the part number denotes a performance part rather than a replacement part, but the numbers are throwing me off. What do you mean by different arches like an SS? Oval track springs are arched, but are considerably flatter than even stock springs whereas an SS spring pack has a lot more arch to them than stock. If these are highly arched, then I'm at a loss.

Maybe they are old Walker Evans style off road racing springs? Might need someone with access to old performance parts catalogs from the early 90s/late 80s to help with P prefix truck part IDs.


OK went and laid them out for the arch, i put a string center hole to center hole and measured at the pin , 335 is 3 1/2, 334 is 2 1/4, these numbers are where the housing sets on the spring. I'm using on a 73 Barracuda, been tubed, big tall tire. When i picked these up they reminded me of a set that a 64 AFX car had and the guy offered to me free(didn't take,dummy me)3/8 inch thick but maybe had 5 leafs. When did Chrysler start with the P prefix they seem older than 80s? The 20 1/2 front segment is weird, more a-body than b-e-body. They 64-65 springs are 21 1/2 stock so maybe they did this to get a 1 inch shorter wheel base?