GM Full Size and Mid-Size Chevelle, Monte Carlo, Cutlass Grand Prix, Regal, Skylark:
• BIL AK1043 Front 358/219-Linear 13.48" Extended - 8.60" Collapsed
• BIL AK1051 Front 393/172-Linear 11.93" Extended - 7.95" Collapsed
• BIL AK3050F Front 131/206-Digressive 13.48" Extended - 8.60" Collapsed
• BIL AK3060F Front 110/233-Digressive 13.48" Extended - 8.60" Collapsed
• BIL AK4040F Front 197/154-Digressive 13.48" Extended - 8.60" Collapsed
• BIL AK5555F Front 254/190-Digressive 13.48" Extended - 8.60" Collapsed
70-81 Camaro and Firebird:
• BIL AK1053 Front 565/164-Linear 14.11" Extended - 9.21" Collapsed
• BIL AK2072 Front 381/233-Linear 14.02" Extended - 8.92" Collapsed
Mustang:
• BIL AK1199 Front 224/122-Linear 21.28" Extended - 15.94" Collapsed
• Valving is listed as Rebound/Compression
AK1051 is a softer shock than AK1043
AK1199 is a strut style shock
**Street Stock Shocks are rated at 20.62" Per second**