Sonnax SBK-F6 Ford 4R70W Torrington Thrust Bearing Kit 7-Piece

The Sonnax SBK-F6 is a comprehensive 7-piece Torrington roller thrust bearing kit designed to replace worn or damaged internal bearings in Ford 4R70W automatic overdrive transmissions. Built to Sonnax's industry-leading quality standards using Koyo bearings, this kit delivers the precision and durability required for a reliable transmission rebuild or overhaul.

Thrust bearings are among the highest-wear components in automatic transmissions, and the rear Torrington bearings — particularly the #9 rear case bearing — are especially prone to wear and failure. Replacing all internal bearings as a complete set during a rebuild is strongly recommended to ensure long-term performance and prevent repeat failures.

Kit Includes (Individual Bearing Positions):

• Forward clutch drum to long sun gear – OEM ref: 3L3P7F244AA
• Rear planet carrier to direct clutch drum – OEM ref: E0AZ7F243A
• Intermediate clutch / reverse clutch #2 – OEM ref: E1TZ7A166A
• Direct clutch to output ring gear – OEM ref: 3L3P7F240AA
• Output ring gear to case – OEM ref: F6AP7F242BA
• Reverse clutch drum to forward clutch drum – OEM ref: E0AZ7F231A
• Long-short sun gear – OEM ref: F3LY7F244A
• 2003 and later units: Reverse clutch drum to forward sun gear (included)

Key Features:

• 7-piece complete internal bearing set covers all critical thrust bearing locations
• Koyo-manufactured roller thrust (Torrington-style) bearings for proven quality
• Direct OEM cross-reference part numbers for each bearing position
• Compatible with 4R70W, 4R70E, 4R75W, and 4R75E transmission models
• Fits 1993 and later units
• Ideal for full rebuilds, overhauls, or preventative maintenance

Cross-reference part numbers: 272-2401, SBKF6, 76201EA, 76201EB, K53906B, S76201EA, S76201EB. The Sonnax SBK-F6 bearing kit simplifies the parts-sourcing process by consolidating all internal thrust bearings into one convenient kit, trusted by professional transmission shops and rebuilders worldwide.