HR Series High Resistance Shocks have all the benefits of our CR Series Rear Shocks PLUS the upper end of the dial offers higher resistance of separation on hard acceleration, perfect for Drag Racing. Dialing to the lower numbers ease the separation for more comfortable street driving.
BUICK: 1964-1977 Skylark, 1964-1977 GS
CHEVROLET: 1964-1973 Chevelle, 1973-1983 Chevrolet Malibu, 1982-2004 S10 (-1″ drop)
OLDSMOBILE: 1964-1969 Cutlass, 1964-1969 442
PONTIAC: 1964-1979 LeMans, 1964-1979 GTO, 1964-1987 Grand
NOTE: Please note on your order if you have a transbrake, footbrake, or manual transmission/stick shift.
Collapsed Length: 13-5/8″, Extended Length: 20-7/8″, Approx. Ride Height: 15-1/2″ *
* Approximate lengths. Please note that Racing Shocks require different collapsed/extended lengths than stock/street shocks.
Calvert Racing’s CR Series 9-Way Adjustable Rear Shocks twin tube design has what you need for all around best performance and maximum consistency. The dampeners allow you to control rear body separation through an external dial to keep the tires planted.
Constructed of steel with heavy duty 5/8 shaft ensures durability in the most stressful conditions, the 9-Way Adjustable dial is located outside the body for easy access to adjust rebound and to control rear body separation. Great for street/strip use.
Sold as a pair, all Calvert Racing shocks include required hardware.
NOTE: If your application’s ride height has been changed, please call us directly, 661-728-9600.
$320.00
In Stock
$288.00 Original price was: $288.00.$230.00Current price is: $230.00.



$288.00 Original price was: $288.00.$230.00Current price is: $230.00.
PAIR BLEMISHED SHOCKS: May contain scratches or dings on outer shell. Tested and blem does NOT impact performance. Please call if you have any questions.
HR Series High Resistance Shocks have all the benefits of our CR Series Rear Shocks PLUS the upper end of the dial offers higher resistance of separation on hard acceleration, perfect for Drag Racing. Dialing to the lower numbers ease the separation for more comfortable street driving.
1973-1978 Buick Apollo
1982-2004 Chevrolet S10 (stock height)
1968-1978 Chevrolet Nova
1971-1976 Oldsmobile Omega
1971-1977 Pontiac Ventura
NOTE: Please note on your order if you have a transbrake, footbrake, or manual transmission/stick shift.
Collapsed Length: 15″, Extended 23-3/4″, Approx. Ride Height 17-1/2″ *
* Approximate lengths. Please note that Racing Shocks require different collapsed/extended lengths than stock/street shocks.
Calvert Racing’s CR Series 9-Way Adjustable Rear Shocks twin tube design has what you need for all around best performance and maximum consistency. The dampeners allow you to control rear body separation through an external dial to keep the tires planted.
Constructed of steel with heavy duty 5/8 shaft ensures durability in the most stressful conditions, the 9-Way Adjustable dial is located outside the body for easy access to adjust rebound and to control rear body separation. Great for street/strip use.
BUICK: 1973-1978 Apollo, 1973-1987 Regal/Grand National, 1964-1979 Skylark GS
CHEVROLET: 1967-1981 Camaro, 1964-1983 Chevelle, 1964-1983 Malibu, 1968-1978 Nova, 1985-2002 S10
DODGE: 1994-2003 Dakota, 1994-2003 Dakota RT
FORD: 1966-1979 Fairlane, 1972-1979 Ranchero
OLDSMOBILE: 1964-1988 Cutlass, 1968-1971 442, 1973-1979 Omega
PONTIAC: 1967-1981 Firebird/TransAm, 1969-1987 Grand Prix, 1964-1974 GTO, 1964-1981 LeMans, 1971-1977 Ventura
AUSTRALIA: 1968-1971 Holden HH/HT/HG Sedan, Panel Van, Ute, Monaro (MODIFY: Widen lower control arm shock opening)
AUSTRALIA: 1971-1984 Holden HQ/WB Ute, One Tonner, Panel Van. (MODIFY: Widen lower control arm shock opening)
Collapsed Length: 9.18″, Extended Length: 14.37″ *
* Approximate lengths. Please note that Racing Shocks require different collapsed/extended lengths than stock/street shocks.
Designed with dual compression valving, Calvert’s CF Series 90/10 Drag Shocks were engineered for cars with mid-range power for softest rate of rebound on the market to allow for better weight transfer and more weight over your rear tires.
Built-in high-speed valving keeps your front end from bottoming out on hard landings. Once you’re out of the hole, low speed compression is active, and a softer valving allows the front end to settle at the top end. Every application has been evaluated for best length, assuring that each vehicle has sufficient travel for maximum traction unlike other manufacturers who model their shocks after factory length shocks. No adjustments are required; designed to perform right out of the box. Lightweight, industrial design.
SOLD SEPARATELY
Fits Chevrolet S10 with shock mounts (passenger side only)
RIGHT MX Rear Mount and hardware to upgrade your current CalTracs to CalTracs MX without sacrificing ground clearance
***To get the most out of your CalTracs, we recommend that your installed CalTracs bars are close to parallel to the ground when fully loaded. Sometimes that configuration is difficult to achieve depending on the mods or equipment you have installed on your drag race car. CalTracs MX helps solve that!
Made with 5/16″ mild steel to withstand the correct torque on your u-bolts and keep your rear-end from moving. UPGRADED HARDWARE included. Black gloss powder coated for extra durability.
LEFT MX Mount available, part # MT-37L MX
DODGE: 1970-1974 Challenger, 1966-1972 Charger, 1965-1972 Coronet, 1963-1976 Dart, 1962-1976 Demon, 1965-1978 Monaco, 1965-1973 Polara, 1975-1976 Royal Monaco, 1963-1976 Swinger
PLYMOUTH: 1964-1969 Barracuda, 1964-1969 Cuda, 1965-1970 Belvedere, 1970-1976 Duster, 1962-1964 Fury, 1966-1978 Fury, 1975-1977 Grand Fury, 1967-1971 GTX, 1968-1972 Road Runner, 1965-1972 Satellite, 1962-1964 Savoy, 1960-1976 Scamp, 1960-1966 Valiant
AUSTRALIAN: 1962-1981 Valiant
Collapsed Length: 9.82″, Extended Length: 15.75″ *
* Approximate lengths. Please note that Racing Shocks require different collapsed/extended lengths than stock/street shocks.
Designed with dual compression valving, Calvert’s CF Series 90/10 Drag Shocks were engineered for cars with mid-range power for softest rate of rebound on the market to allow for better weight transfer and more weight over your rear tires.
Built-in high-speed valving keeps your front end from bottoming out on hard landings. Once you’re out of the hole, low speed compression is active, and a softer valving allows the front end to settle at the top end. Every application has been evaluated for best length, assuring that each vehicle has sufficient travel for maximum traction unlike other manufacturers who model their shocks after factory length shocks. No adjustments are required; designed to perform right out of the box. Lightweight, industrial design.