Now we're talkin' - it pays to keep diggin' for the truth. The info just provided is much needed and goes beyong just the AAR springs and their part numbers. The AAR springs are 4 1/2 leaves, but special, they add a height increase to rear for clearance for the side exit exhaust. Thanks for taking the time to upload all those BCS's 70440+6bbl, cool brother.

The Challenger with the 383 2bbl, L code, it has 043 springs listed. Maybe I am missing something here, but they may be a standard vs HD standard compared to my 044 code. Will be good to know if the 044 code is actually standard HD springs for conv.'s.