Common complaints in Ford AODE and 4R70 series transmissions are delayed forward engagement and harsh 1-2 shifts caused by the 1-2 accumulator bore in the case being worn or scored. This wear results in the loss of 2nd clutch pressure and the need to replace the case. Sonnax 1-2 accumulator sleeve kit 76890-01K salvages expensive cases and restores the 1-2 shift.

Salvages expensive cases
Restores 1-2 shifts
Requires no machining of the case
Sonnax tool 76890-TL simplifies installation and ensures correct sleeve orientation
Drop-in Zip Valve™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

More From This Category

Dart Cylinder Sleeve, Cast Iron, SBC 9.500 in. Deck, 4.125 in. Bore, 6.100 in. Length, in. Length, SF, Each

Dart Cylinder Sleeve, Cast Iron, SBC 9.500 in. Deck, 4.125 in. Bore, 6.100 in. Length, in. Length, SF, Each

$169.72

View
Dart Cylinder Sleeve, Cast Iron, 9.240 in. Deck, 4.000 in. Bore, 5.825 in. Length, LSN SF, Each

Dart Cylinder Sleeve, Cast Iron, 9.240 in. Deck, 4.000 in. Bore, 5.825 in. Length, LSN SF, Each

$169.72

View
MELLING Cylinder Sleeve, Cast Iron, 2.375 in. Bore I.D., 0.125 in. Wall Thickness, 6.500 in. Length, Each

MELLING Cylinder Sleeve, Cast Iron, 2.375 in. Bore I.D., 0.125 in. Wall Thickness, 6.500 in. Length, Each

$39.78

View
Dart Cylinder Sleeve, Cast Iron, BBC 9.800 4.600 in. Bore, 6.370 in. Length SF, Each

Dart Cylinder Sleeve, Cast Iron, BBC 9.800 4.600 in. Bore, 6.370 in. Length SF, Each

$303.00

View
Dart Cylinder Sleeve, Cast Iron, BBC 9.800 4.600 in. Bore, 6.370 in. Length, Each

Dart Cylinder Sleeve, Cast Iron, BBC 9.800 4.600 in. Bore, 6.370 in. Length, Each

$254.52

View