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65-79 Differential Carrier Clutch Spring & Preload Plate Kit (400lb)
Item #:
In Stock - Ships Tomorrow
New replacement 1965-1979 Corvette differential carrier clutch preload plate and spring kit. Includes 400lb springs and spring plates that would have been originally installed on all big block and small block Corvettes with heavy-duty differentials. The heavy springs provided more positraction control as they increased the break-away torque for the clutch plates. However, heavy springs can also reduce driveability in cornering situations as the clutches will not slip as designed.
This item is proudly Made in the USA

Installation difficulty: 5

Our technicians have determined that the installation difficulty level of this item is a 5 on a scale of 1-5. Read more about our install ratings here.

Model Years

More Information
Generation C2, C3
Model Year 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979
Additional Item Information
  • OE GM PART #: 3869320, 3890899
    *GM part # provided for lookup purposes only.
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