Leaf Springs

[droptopford]

Hi Guys,
I found some new leaf springs for sale on eBay, supposedly for '57 through '59 Retractable. The vendor is McVeigh Parts in Mich.
Just wondering if anyone has any info/experience with the supplier or any advice in finding good quality replacement springs. If possible, I'd like to find something made in the good old USA.
Mine aren't broken but they're starting to sag.

Clark

(sorry if this thread is in the wrong section. I didn't see any spot for 'frame' etc.)

[Zuber]

I so those as well and was interested. It would be great if someone here has any additional information.

Kent Z.