Sonnax 4L60E Transmission Heavy Duty 3-4 Clutch Backing Plate Kit 74140-01K Rebuild Kit * Proper tolerance assured at

* Proper tolerance assured at bore mating surfaces

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

Outer Notch Count: 6

Interchange Part Number: 1068 298 044 01

Sonnax 4L60E Transmission Heavy Duty 3-4 Clutch Backing Plate Kit 74140-01K Rebuild Kit * Proper tolerance assured atBrand: 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