Sonnax 4L60E Transmission Heavy Duty 3-4 Clutch Backing Plate Kit 74140-01K Rebuild Kit Fits Ford/Lincoln Mercury 5R55W/S and

Fits Ford/Lincoln Mercury 5R55W/S and 5R55N

Manufacturer Part Number: 5R1-PLUGS-PS

Since it is not an electrical failure

The 700-R4 TransAction keeps normal throttle operation while allowing for better manual control

It also works with the Tuneless kits

Sonnax 4L60E Transmission Heavy Duty 3-4 Clutch Backing Plate Kit 74140-01K Rebuild Kit Fits Ford/Lincoln Mercury 5R55W/S andBrand: Sonnax Manufacturer Warranty: Yes Fitment Type: Performance Custom Manufacturer Part Number: 74140 01K Universal Fitment: Yes Vintage Part: No Performance Part: Yes 4L60, 4L60 E, 4L65 E, 4L70 E Heavy Duty 3 4 Clutch Backing Plate Kit Part No. 74140 01K Requires 91 later 3 4 apply ring stamped with number 7, measuring 3. 6713. 682" in height. A thin, weak backing plate is the leading cause of 3 4 clutch distortion and burnup a pervasive problem