Who makes the most accurate and original looking rear leaf springs
For a 1971 R/T Challenger to go back stock and for the correct factory stance?
Also, do they have the correct factory PN on them
Thanks for any info.

I’ve heard Eaton springs has the most accurate springs. I believe they were even OEM “back in the day”.
They do not have the original part numbers on them, nor does any spring manufacturer make a Chrysler licensed to put their part number on it spring.
However, Tony’s Parts sells bottom leafs with original part numbers that can be used to replace the lower leaf, to build your own correct reproduction leaf springs, if you have a car that was equipped with one of the part number repro leafs he sells. He sells the leafs for ‘71 V code and hemi cars.
https://www.tonysparts.com/all-part...-6bbl-Hemi-Lower-Leaf-Springs-p372008385

Where is Eaton Leaf Springs based out of?
TIA

If we are talking about the same company, it's Eaton Detroit Spring. And they are indeed in Detroit.

https://www.eatondetroitspring.com/