Collector’s Auto Supply Rear Shocks?

Happy News!

My rear leaf spring order from SpringsnThings is due Friday. Soooo, I need to consider which rear shock absorber to replace the coil-over Monroe Load levelers I installed to supplement the tired flat steel in my 55 yr old original leaf springs. Looking at the Rare Parts website revealed some big, beautiful U.S. made rear shocks with a SKU# 51273. Turns out they're claimed by a "Collector's Auto Supply" outfit.

Have any of you used rear shocks made by these folk? How do they...

Collector's Auto Supply Rear Shocks?