Dodge had a soft spot, but I guess it wasn't for their 340 cars. If Barry is right, and I'm not at all questioning this, then the S15 susp with 024/034 springs were optional on Challys and not standard. So that 043 springs were standard fare for 340 Challengers, not 340 'Cudas.

There is only the question of a non-R/T 340 Challenger V8 vs a real 340 R/T and to which spring was standard, maybe both came standard with 043 and 024/034 was optional on both?

With a little more investigation Moparclown...you can find out for sure - unless the answer was just given by our good man Barry W. Thanks guys.