You can't replace them with stock type re-pop's b/c NOBODY make's stock type double tapered mono springs that I know of!!
Check all this out on the 3-leaf, mono replacemrnts that I have put together and saved on this from here through the months/years past!!
"Here's the information on these springs. They are made by, (at that time), S&G Enterprises, Inc. Their website is S&G Enterprises and the part # is 21-245. They are made in Mexico. This same part shows up on this website Triangle Spring as factory replacement springs. They don't list the details such as spring rate on either site though.
My JCW cat. is number 671J-02 and the spring number is 94UA2669X at $62.95 each.
If this cross references to one of the the numbers you listed which should be the second one down.
More info on the JCW springs. According to the sticker on the springs I installed from Vette Brakes the JCW/Triangle and VB
springs both have the same PN (21-245).
I am going to assume they are the same spring given the PN and the fact my VB
springs were labled "Triangle". This would make the JCW springs #130.
The curious thing is after the install my rear end is about an inch higher with the VB
springs than other who have used the JCW springs. (Yes, everything was tightned after it was on the ground)
Here is the thread with the info on my VB
Just trying to keep all the pertinant info in one thread.
St. Louis Spring, (sell's them too), = 1-314-533-2132, Mon-Fri 7:30-4:30. Per Mike P."
And I have JCW's on my car now, BUT I did rework them by adding two more leaf's to each from my shot '68 'Bird multi's to better match my about 500 to 525 pound front coils.