Product Description
4R70E 4R70W 4R75E 4R75W Heavy Duty 1-2 Accumulator Spring Kit (2007-UP) by Sonnax
Part No. 76948-10K
Fits '07-later units.
OE Part No. 1L3Z-7F284-AA & 1W7Z-7F284-AA
In Ford 4R70E, 4R70W, 4R75E and 4R75W transmissions used for heavy-duty or towing applications, soft shifts and 1-2 slips are common. This happens when the OE 1-2 accumulator springs weaken, break, or are not calibrated to withstand the demands of heavy-duty use.
Installing Sonnax heavy duty 1-2 accumulator spring kit 76948-10K restores shift feel and improves overall performance, reliability and longevity of 4R70W series transmissions.
- Specially designed inboard and outboard accumulator springs provide a firmer and more responsive 1-2 upshift, ensuring optimal performance even under heavy loads
- Stronger-than-OE springs enhance transmission durability and reliability.
Note-
Provides firmer shifts in heavy duty/towing applications. Only use the two springs included in this kit. Some OE applications have a blue inner spring that is NOT used with this kit.
Contents-
- Inboard Spring Green
- Outboard Spring Yellow
