here's the MP shock:
Mopar Performance Drag Race Rear Shock Absorber - P4529514
which, news to me, they list as for AT? anyway, they don't list a length just "designed with extended length".
comp engineering units are COEC2735 and list at 24.5" and mention "for use with super stock springs", their other ones COEC2730 don't spec SS springs and list 23.6"
fwiw, when i played around in straight line racing i ran rancho's with SS springs, they were for sure longer. i can't tell you how much longer because it's been 27 years, 4 months and 3 days since my airplane was shot down and i lost all my notes in the ensuing fire.
