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Part fits the following years:1973


GTO Coil-Over Conversions Double Adjustable 450# (1901-2100 lbs.)

Part# C240442


Mfg# GD401-10450C

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SAVE: $63.96 Retail: $703.95

OPGI Price: $639.99


Part Type: (P) High Performance, designed to improve performance
Years: Sold As: PAIR
2018 GTO Catalog Page: 392


’64-73 GTO, Tempest and LeMans

Includes a 1-year warranty

  • NOTE1: These high-performance items are not eligible for any further discounts or promotional pricing.
  • SHIP NOTE: This item is SPECIAL ORDER and will be drop-shipped from the manufacturer. more info

QA1's single or double adjustable front coil-over conversion shocks feature a forged and machined aluminum shock body that has been threaded for the ultimate in ride weight adjustability. Each shock body is also clear-anodized for award-winning looks and durability. Specially designed conical springs come with each kit, allowing for use of the factory upper spring pocket, while the lower portion rides on plates with the shock body. Choose either single or double adjustable shocks depending on your needs. The single adjustable series provides 24 positions that simultaneously adjusts both compression and rebound with one knob. Double adjustable shocks offer a much wider range with separate knobs for compression and rebound. Each kit is designated by vehicle type as well as total front end weight for the best ride quality possible.

Make & ModelYear RangeApplication Details
Buick Grand National1978-1987 450# (1901-2100 lbs.)
Buick Regal1978-1987 450# (1901-2100 lbs.)
Buick T-Type1978-1987 450# (1901-2100 lbs.)
Chevrolet Chevelle1973-1977 450# (1901-2100 lbs.)
Chevrolet El Camino1973-1977 450# (1901-2100 lbs.)
Chevrolet El Camino1978-1988 450# (1901-2100 lbs.)
Chevrolet Malibu1978-1988 450# (1901-2100 lbs.)
Chevrolet Monte Carlo1973-1977 450# (1901-2100 lbs.)
Chevrolet Monte Carlo1978-1988 450# (1901-2100 lbs.)
Oldsmobile Cutlass/4421973-1977 450# (1901-2100 lbs.)
Pontiac Grand Prix1973-1977 450# (1901-2100 lbs.)
Pontiac GTO1973 450# (1901-2100 lbs.)
Pontiac LeMans1973 450# (1901-2100 lbs.)
Pontiac Tempest1973 450# (1901-2100 lbs.)
California Prop 65 Icon WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
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