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Sonnax Heavy Duty 3-4 Clutch Backing Plate Kit 74140-01K

Product Description For Sonnax Parts
Product Part No: -- 74140-01K
Transmissions: -- 4L60E 4L65E 4L70E 700R4
Package and Weight
Package Quantity: -- 1 ea
Sonnax:High Performance Part - Heavy Duty 3-4 Clutch Backing Plate Kit
Base Price:
$111.93
Product Description
Part Information:
Requires ‘91-later 3-4 apply ring stamped with number “7”, measuring 3.671–3.682" in height.
  • Backing plate is significantly thicker and stiffer than OE for added durability:
  • Drop-in, mid-level upgrade for daily drivers and mild street/strip applications:
Part Contents
  1. Backing Plate:
  2. Apply Plate:
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