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Vehicle Info NeededSONNAXPART NUMBER: 852-144281-01K
144281-01K Case Saver Kit, 6F35 (Gen. 1)/6F35 (Gen. 2)/6F35 (Gen. 3)/6T40 (Gen. 1)/6T40 (Gen. 2)
$3602
Ships on 09/16/2026
Lowest Price Guarantee- Case Saver Kit
- 6F35 (Gen. 1)/6F35 (Gen. 2)/6F35 (Gen. 3)/6T40 (Gen. 1)/6T40 (Gen. 2)
Sonnax 144281-01K Features:
Ford 6F35 (Gen. 1, Gen. 2 and Gen. 3) and GM 6T40 (Gen. 1 and Gen. 2) transmissions are notorious for worn axle bushings, which allow external leakage. This premature bushing wear can be caused by a worn differential support, which affects endplay negatively. The thrust bearing that rides on the differential support rotates, wearing deeply into the aluminum support and allowing endplay to become far excessive. To correct endplay, a new case half is required.
Instead of sourcing an expensive new case, you can stop further wear, reduce endplay or restore endplay to proper levels by installing Sonnax case saver kit 144281-01K.
- Non-rotating shims correct differential endplay and prevent future wear
- Prevents repeat bushing failure caused by excess endplay
- .020" Shim with Tab 2.50" O.D.
- .040" Shim with Tab 2.50" O.D.
- .010" Shim with Notch 2.50" O.D.
- .010" Shim w/o Notch (2) 2.78" O.D.
- Thrust Bearing Driven Sprocket/Case
Contains:
Part TypeTransmission Rebuild Component
BrandSONNAX
Package Height1.5
Package Width4.0
Package Length5.9
Weight0.24 PG
Part CategoryPerformance Parts
Vendor Part Number144281-01K
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
