330 lb. Composite Monospring: A Plus one to the 300 composite rear spring. Can be used on any 1963-1982 small block car. Rides and handles great. Ideal when combined with GT front coil springs and QA1 Non Adjustable shocks.
360 lb. Composite Monospring: The Street/Slalom spring. Recommended for all big block cars and those wanting greatly enhanced handling in SB cars. This high performance spring gives better ride than a 7-leaf with far superior handling. Ideal spring to use with SS front coils (550 lbs./inch) and QA1 Non Adjustable Sport shocks.
400 lb. Composite Monospring: Increased stiffness. Racers and drag racing. Direct substitute for Daytona Steel Spring (400 lbs./inch) and should be used with an adjustable shock.
With the Composite Rear Spring Kit you must use 8" long spring bolts.
***NOTE*** Springs are shortened a 1/2" PER SIDE or 1" PER SIDE. This is done for tire clearance. Please have your tire specs ready if you're going to call with questions. Typically anything wider than a 255 in the rear on C3's will require a shortened composite spring IF you plan on running a 15"-17" wheel. (Published 10/7/2021)
QSP-6382-NA
1963 - 1982
QA1 Non-Adjustable Shocks - Car Set
$559.99 4 pcs
QSP-6382-SP
1963 - 1982
QA1 Non Adjustable Sport - Car Set
$589.99 each
SG-11P8K
1963 - 1982
8 Inch Bolt Kit w/Poly Bushings
$49.99 pair
SG-24K
Illus. #13
1963 - 1977
Spring Plate w/Bolts (2.25 Spring)
$42.99 each
SG-24TM
1963 - 1977
Diff Tow Mount Bracket - 63-77 Rear Spring Car
$74.99 each
SG-25K
Illus. #13
1978 - 1979
Spring Plate w/Bolts (2.50
$31.99 each
SG-25TM
1977 - 1979
Diff Tow Mount Bracket - 78-79 Rear Spring Car
$74.99 each
SG-26K
Illus. #13
1980 - 1982
3 Hole Spring Plate w/Bolts
$41.99 each