Product Description

4R70E, 4R70W, 4R75E, 4R75W

Valve Body Retainer Plate Kit
Part No. 76507F-01K

2001 & later

The valve body stiffener plate in the 2-3 accumulator area was eliminated on 2001-later 4R70W &4R75W transmissions. Oil pressure builds up in unused cavities under the separator plate causing the plate to flex upwards as much as .010", allowing forward and direct oil passages to cross leak. The Sonnax retainer plate 76507F-01K bolts in place and provides the clamping force to compress the lower valve body gasket. This prevents cross leaks, separator plate flexing and cracking, so that cracked separator plates can be reused.

• Allows previously cracked separator plates to be reused.
• Prevents cross leaking.
• No special tools required.
• Installs in just minutes.