I have a set of AFCO Double Adjustable Eliminator Drag Shocks Part # 1840F. Off my SS 1971 Corvette (704 NHRA). Coverting my car to NMCA West True 10.5 with Mustang II front suspension. Compressed length is 10.9", extended 14.9", 4" stroke. According to Jeg's and AFCO application guides they should fit your G body AFCO replaced the 1840F with the 3840F which has more compression adjustments. My 1840F shocks have 8 compression settings. Used less than 2 years and are in great condition. Can text photos if you send me your cell number. Jeg's sells the new version for $604 a pair. Will take $220 for the pair plus shipping.
Dennis Davison
dennda709@yahoo.com