1963-1982 C2-C3 Differential Carrier Upper Rubber Cushion Bushing 3788637 - OEM Number(s) (3788637)
Eliminate Drivetrain Noise and Restore Smooth Performance
Replace worn or deteriorated forward differential cushions to reduce clunking, banging, and vibration during acceleration. A small part with a big impact on drivability.
Fitment
Material/Finish
Steel-reinforced heavy rubber construction, engineered as a faithful reproduction of the original GM design.
Dimensions
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3/8" I.D., 1 3/16" O.D. (upper opening)
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5/8" I.D., 7/8" O.D. (lower section)
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Height: 1 13/16"
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Overall: 1 5/32" tall, 1 5/32" upper thickness
Features & Benefits
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Replaces GM Reference Part Number 3788637
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Direct replacement for original cushion bushings
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Reduces driveline vibration and frame-transferred noise
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Correct steel-reinforced rubber for factory authenticity
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Installs on top of crossmember bracket
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One required per vehicle, sold individually
Because Details Matter
Your Corvette deserves a quiet, smooth ride without unwanted clunks or vibrations. This cushion restores comfort and confidence while keeping your driveline secure — because details matter.
Also known under these part numbers: (For reference only)
- 25-122898-1
- 3788637
- 582121
- 686420075608
- SU43