Sonnax Ford AX4S Transmission

Remanufactured Valve Body

AX4S Remanufactured Valve Body F085

’98-Later, XF/YF Casting

Internal

Bearing Kit SBK-F4

Fits '86-later

Helps cure:

Bearing noise
Bearing failure

Final Drive Carrier-to-Case Thrust Bearing 96420

Bearing Style: Enclosed
Inner Dia.: 1.640"
Outer Dia.: 2.513"
Thickness: 0.296"

Helps cure:

Bearing noise
Bearing failure

Forward Planetary Bearing 96003-01

Bearing Style: Roller bearing

Helps cure:

Bearing noise
Bearing failure

Tooling:

96003-MTL

Rear Sun Gear Bearing & Race Assembly 96423

Bearing Style: Enclosed
Material: Hardened Steel
Outer Dia.: 2.800"
Thickness: 0.255"
Inner Dia.: 1.850"

Helps cure:

Bearing noise
1-2, 2-3, 4-5 Flares

Retaining Ring 96730-RR

Rear Ring Gear

Helps cure:

No movement
Retaining ring pops out of groove

Pump

Oil Pump Shaft 96855-02K

Patented design increases oil flow

Helps cure:

Scored shaft

Pump Bearing 96077-01

Without integral seal

Bearing Style: Roller bearing

Helps cure:

Bearing noise
Bearing failure

Pump Bearing 96855-01K

'99-Earlier AX4N

Outer Dia.: 1.000"

Helps cure:

Bearing noise
Bearing failure

Pump Cover 96200-01

Material: Aluminum

Helps cure:

Low line pressure & pump volume

Pump Slide Pin 96200-02

Helps cure:

Lost or damaged component

Valve Body (View Valve Body Layout Diagram)

3-2 Timing Valve Saver Cap Kit 96201-15K

Helps cure:

3-2 Coastdown Neutral
No upshifts

Backout Valve Clip 96201-11

Helps cure:

Lost or damaged component

Boost Valve Kit 96201-12K

Fits 3.0 liter 12 valve, O-ring style.

Helps cure:

1-2 Flare
2-3 Flare
2-1 Clunk
Harsh Reverse
Clutch failure
Band failure
Non-adjustable (high) throttle pressure

Boost Valve Kit 96201-08K

Fits all except 3.0 liter 12 valve, factory style sleeve, no O-ring.

Helps cure:

1-2 Flare
2-3 Flare
2-1 Clunk
Harsh Reverse
Clutch failure
Band failure
Non-adjustable (high) throttle pressure

Boost Valve Kit 96201-01K

Fits all except 3.0 liter 12 valve, O-ring style.

Helps cure:

1-2 Flare
2-3 Flare
2-1 Clunk
Harsh Reverse
Clutch failure
Band failure
Non-adjustable (high) throttle pressure

Boost Valve Kit 96201-13K

Fits 3.0 liter 12 valve. Factory style sleeve, no O-rings.

Helps cure:

1-2 Flare
2-3 Flare
2-1 Clunk
Harsh Reverse
Clutch failure
Band failure
Non-adjustable (high) throttle pressure

Bypass TCC Control Plunger Valve Kit 96206-01K

Helps cure:

Code 628
TCC slip
No lockup
Soft TCC apply
No TCC release during coast
Excess cooler circuit oil loss

Checkball 10000-10

Imidized Plastic, .312" Dia.

Material: Imidized Plastic
Dia.: 0.312"

EPC Solenoid 86431-A

If supplying a core for your solenoid, please order 86431-A-RRP. If no core available, please order 86431A-C.

Helps cure:

Line pressure instability

Forward Control Valve Kit 96201-16K

Helps cure:

No Forward
1-2-3-2 Shifts
Slips in Forward & Reverse
No Reverse
No 4th
Burnt Forward clutch

Manual Valve 96201-05

Lengthened spool diameter

Helps cure:

Delayed Forward
Burnt Forward clutch

Oversized Bypass Clutch Control Valve Kit 96201-19K

Helps cure:

Hydraulic-related converter codes
TCC apply & release concerns
Low cooler & lube pressure

Tooling:

96201-TL

Oversized Converter Regulator Valve Kit 96201-23K

Works in 2- or 4-spooled OE applications

Helps cure:

Code 628, 741, 744
TCC cycling
Overheating & reduced lube feed
Delayed engagement
Overheated converter
Blued converter
TCC surge
4th Slip
Coastdown Neutral
No 4th

Tooling:

F-96201-TL23
VB-FIX

Oversized Pressure Regulator Valve Kit 96206-10K

Late-style

Helps cure:

Erratic line pressure
Delayed engagement
Pump noise
Pump rotor & cover damage
Overheated converter
Lube failures

Tooling:

96206-TL2

Oversized Solenoid Regulator Valve Kit 96201-21K

Helps cure:

Code 1741, 1744
TCC cycling
No lockup
TCC surge

Tooling:

96201-TL2

Pump Shaft Sleeve 96201-18

Helps cure:

Lost or damaged component

Relief Valve 10000-01K

Low radius

Material: Steel

Helps cure:

Pressure loss
Converter drain back

Case

Stator Support Shaft 96849-01K

Fits '86-'03, Bushing & bearing already installed

Helps cure:

Scored shaft

Servo/Band

Low/Intermediate Servo Cushion Spring Retainer 96728-01

Helps cure:

2-3 Flare
Downshift clunk
Poor servo timing
Delayed Forward
No Forward

Low/Intermediate Servo Pin Kit 96945S

Low-intermediate servo

Helps cure:

2-3 Flare
Downshift clunk
Poor servo timing
Delayed Forward
No Forward

Low/Intermediate Servo Piston 96728

Low-intermediate

Helps cure:

2-3 Flare
Downshift clunk
Poor servo timing
Delayed Forward
No Forward

Low/Intermediate Servo Spring 96995A

Low-intermediate servo

Helps cure:

2-3 Flare
Downshift clunk
Poor servo timing
Delayed Forward
No Forward

Low/Intermediate Servo Spring Retainer Clip 96945R

1-2 Servo

Helps cure:

2-3 Flare
Downshift clunk
Poor servo timing
Delayed Forward
No Forward

Servo Pin Bore Sleeve 96872-01K

Helps cure:

3-4 Flare
Burnt OD band
Worn OD servo pin bore in case

Tooling:

S-96872-TL
SERVO-FIX

Other

1-2 Accumulator Bore Sleeve Kit 96513K

Helps cure:

Flare shifts
Harsh shifts
Delayed engagement

Bore Sizing Tool 96201-BST

Use with 96201-16K

Tool Kit F-96201-TL23

Tooling:

VB-FIX

Tool Kit 96206-TL2

Tool Kit 96201-TL

Tech Resources

January 25, 2023

Uncovering the Root Cause of Pressure & Complaints – The Critical Role of Solenoid Modulator & AFL Valves

Maura Stafford

June 21, 2021

Ford AX4S, AXOD, AXODE Valve Body Layout

May 03, 2019

Hydraulics Fundamentals Part IV: Converter Clutch Control

Bob Warnke

July 18, 2013

SonnaFlow® Chart: AX4S (Normal & Poor)

May 16, 2006

SonnaFlow® Chart AXODE (Poor)

May 16, 2006

SonnaFlow® Chart AX4N (Normal & Poor)

May 16, 2006

SonnaFlow® Chart AXODE (Normal)

May 16, 2006

SonnaFlow® Chart: AXODE PWM (Normal)

March 19, 2004

AX4S and AX4N Turbine Speed Sensors

Mike Steen

September 21, 2003

Ford Bypass Converter Clutch Circuits

Gregg Nader