SC AODE 4R75E IN

2017-09-15

: Sonnax Sc-Aode-4R75E-In SC-AODE-4R75E-IN 4472 instructions part uploads

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PART NUMBER SC-AODE-4R75E INSTRUCTION BOOKLETPART NUMBER SC-AODE-4R75E INSTRUCTION BOOKLET

4R70E, 4R70W, 4R75E, 4R75W, AODE

SURE CURE KIT

Parts are labeled here in order of installation. See other side of sheet for details on Sure Cure kit contents.

See Sure Cure instruction booklet for detailed installation steps.

VALve Body install Diagram

To ensure bypass/TCC system

has full control, drill "A" & "B"

holes out to .062".

Eight checkballs to

install, see locations

on valve body.

See Technical booklet for installation details during overhaul.

Reference page 3 in

technical booklet.

800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com Page 1

Page 2 800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com

4R70E, 4R70W, 4R75E, 4R75W, AODE SURE CURE KIT

Instruction Booklet

TIME TESTED • INDUSTRY TRUSTED

Step Install Oversized Solenoid

Regulator Valve & Spring

Packaging Pocket 5

• Valve • Spring

Step Replace Overdrive Servo

Regulator Valve & Sleeve

NOTE: '01–Later applications only.

Remove OE clip and save for reuse. Remove and discard OE overdrive

servo regulator valve and sleeve.

NOTE: Remove the inboard overdrive servo regulator valve and ensure

that it is free in its bore. The inboard valve is commonly stuck as OD

servo retaining ring often breaks and pieces of the snap ring lodge in

this bore.

Packaging Pocket 6

• Valve • Sleeve

Step Replace OE Checkballs

Refer to page 1 for locations.

Packaging Pocket 7

• Checkballs (8)

Step Install Valve Body

Retainer Plate

NOTE: Used on '01–later applications only. Installation requires

drilling of separator plate and valve body casting so it can be

threaded. Reference page 6 for detailed instructions.

Packaging Pocket 8

• Retainer Plate • Gasket • Bolts (2)

Sure Cure Contents & Installation Steps

Step Ream Main Pressure

Regulator Valve Bore

Step Ream Solenoid Regulator

Valve Bore

PART INSTALLATION: To implement best practices and avoid chip

contamination, wait until all valve body reaming operations are nished

before installing Sonnax products. Detailed installation instructions are

explained later in this booklet.

F-TOOL REAMING: Visit Sonnax web site www.sonnax.com for gener-

al F-Tool reaming xture instructions, as well as best practices for bore

preparation, cautions and suggestions on bore reaming.

Step Install Oversized Main PR

Valve, Oversized Boost

Valve & Sleeve

Reuse OE Spring. Reference page 4 for detailed instructions.

Packaging Pocket 1

• Oversized Main PR Valve • Boost Valve • Boost Sleeve

Step Replace Bypass Clutch

Control Valve Plunger,

Sleeve & Spring

Packaging Pocket 2

• Plunger • Sleeve • Spring

Step Perform Separator Plate

Modications

Packaging Pocket 3

• Drill bit, .062" (not shown)

Step Replace 2-3 Shift Valve

End Plug

Remove OE clip and save for reuse. Remove and discard OE 2-3 shift

valve end plug. Install O-ring on Sonnax end plug in shallow groove.

Lubricate with Sonnax O-Lube or equivalent, roll on bench to size.

Install O-ringed plug into bore, O-ringed land rst. Reinstall OE clip.

Packaging Pocket 4

• Plug • O-Rings (2) 1 extra

4R70E, 4R70W, 4R75E, 4R75W, AODE SURE CURE KIT

Instruction Booklet

800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com Page 3

TIME TESTED • INDUSTRY TRUSTED

Step Install Intermediate Clutch

Spiral Retaining Ring

Reference page 6 for detailed instructions.

Packaging Pocket 9

• Spiral Retaining Ring • Locking Ring

Step

Replace Output Shaft Seals.

Inspect Direct Piston &

Direct Clutch Drum.

Reference page 7 for detailed instructions.

Packaging Pocket 10

• Output Shaft Seals (2)

Step Install Pump Cover &

Input Shaft Seals

NOTE: There are 2 types of rings for the stator

'02-Earlier and '03-Later.

Reference page 7 for detailed instructions.

Packaging Pocket 11

• Pump Cover Seals; Early (2), Late (2) • Input Shaft Seals (2)

Step

Replace Overdrive Servo Pin

Reference page 8 for detailed instructions.

Packaging Pocket 12

• Servo Pin • O-Rings; Large (1), Medium (1)

Sure Cure Steps During Transmission Overhaul

Page 4 800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com

Figure 3

Sonnax PR valve replaces

both OE valve styles

found in '96-later units.

Step Ream Pressure Regulator

Valve Bore (Figure 2)

1. Disassembly

a. Remove OE retainer and save for reuse.

b. Remove and discard OE boost valve and sleeve.

c. Remove OE pressure regulator valve spring and

save for reuse.

d. Remove and discard OE pressure regulator valve.

2. Ream Bore

NOTE: This bore requires the use of tool kit

76948-TL4 or tool kit F-76948-TL and the

alignment xture VB-FIX (not included in this kit).

NOTE: Sonnax 76948-BST can be used if necesary to

ensure that the pressure regulator valve moves freely.

NOTE: The oversized valve in this kit will also service the

split spool design shown (Figure 3).

NOTE: Do not install valves at this time. Wait until all reaming operations are nished.

Step Ream Solenoid Regulator

Valve Bore (Figure 4)

1. Disassembly

a. Remove OE retainer and save for reuse.

b. Remove and discard OE spring and solenoid regulator valve.

2. Reaming Bore

NOTE: This bore requires the use of tool kit F-76948-TL47 and the alignment

xture VB-FIX (not included in this kit).

Spring

Pressure

Regulator

Valve

AODE

Valve Body

Boost

Sleeve

Tool Kit

F-76948-TL

Requires

VB-FIX

Tool Kit: 76948-TL4

Does not require VB-FIX

76948-BST

Boost

Valve

Figure 2

Valve Body Verication

Verify that this kit ts your valve body. Rough forging

must begin with RF-F6 or 1L3P located below sti-

ener plate (Figure 1). is kit ts '96–later units. It will

NOT work on '91–'95 units.

Figure 1

Figure 5

Line on back of sleeve

indicates the two orice

hole locations, placed at

3 & 9 o’clock position.

4R70W

Valve Body Spring

Valve

Tool KIt

Figure 4

PART NUMBER SC-AODE-4R75E INSTRUCTION BOOKLETPART NUMBER SC-AODE-4R75E INSTRUCTION BOOKLET

4R70E, 4R70W, 4R75E, 4R75W, AODE

SURE CURE KIT

4R70E, 4R70W, 4R75E, 4R75W, AODE SURE CURE KIT

Instruction Booklet

800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com Page 5

TIME TESTED • INDUSTRY TRUSTED

Step Install Oversized Main

Pressure Regulator Valve,

OE Spring & Oversized

Boost Valve & Sleeve

a. Install Sonnax oversized main pressure regulator valve, smaller diameter rst.

b. Reinstall OE pressure regulator valve spring.

NOTE: The small OE boost spring was eliminated in later applications and is not

required. If your application originally had the spring, it may be reinstalled into the

Sonnax boost assembly if desired. Use of the spring will provide slightly

quicker Reverse line rise pressure.

c. Install Sonnax boost valve assembly into bore, ensuring sleeve snout enters

OE spring I.D.

d. Reinstall OE retainer.

Step Replace Bypass Clutch

Control Valve Plunger,

Sleeve & Spring (Figure 5)

a. Remove OE clip and set aside for reuse.

b. Remove and discard OE plunger sleeve, plunger valve and spring.

c. Remove plunger valve from Sonnax sleeve, set aside for reuse.

d. With enclosed Sonnax drill bit, drill thru existing Sonnax sleeve cross-orice

hole and out other side of sleeve. Remove debris and burrs. Reinstall Sonnax

plunger into sleeve.

e. Install Sonnax orange spring and plunger valve and sleeve assembly into

bore and draw a line on the back of the sleeve indicating the two orice hole

locations and place at the 3 and 9 o'clock position(Figure 5).

f. Reinstall OE clip.

Step Perform Separator Plate

Modications

Step Replace 2-3 Shift Valve

End Plug

Step Install Oversized Solenoid

Regulator Valve (Figure 4)

a. Ensure valve bore and body are clean and clear of debris.

b. Install Sonnax valve, longer spool end pointed inward.

c. Install Sonnax spring, ensuring it seats over outboard valve stem.

d. Compress spring and reinstall OE retainer.

Step Replace

Overdrive Servo

Regulator Valve

& Sleeve

Step Replace OE

Checkballs

Step Install Valve

Body Retainer

Plate Kit (Figure 6)

1. Tools Required

• 13/64" or #9 sharp

drill bit

• 1/4" and 5/16"

drill bits

• 6.0mm x 1.0mm

thread tap

2. Installation &

Assembly

a. Install the separator

plate onto the valve

body and align the

plate with the origi-

nal alignment bolts.

Figure 6

Retainer plate,

gasket

and bolts.

Underside of 4R70W Valve Body

2 Cast in-place

bolt holes

Figure 7

Page 6 800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com

4R70E, 4R70W, 4R75E, 4R75W, AODE SURE CURE KIT

Instruction Booklet

TIME TESTED • INDUSTRY TRUSTED

b. Locate the two cast in-place bolt hole locations on the underside of the valve

body as shown in (Figure 7).

c. In a drill press use a 5/16" drill bit to clean up the cast in-place bolt hole loca-

tions and establish a true center for drilling further with the 13/64" or #9 drill.

WARNING: Do not drill deeper than 1/16" with the 5/16" drill bit (Figure 8).

d. After true center is established, use a 13/64" or #9 drill bit to drill all the way

through the valve body AND separator plate with a piece of wood underneath

to prevent the plate from deforming as the drill bit cuts through.

e. Remove the separator plate and enlarge the two drilled holes with a 1/4" drill

bit. De-burr the new holes in the separator plate.

f. With a 6.0 x 1.0mm thread tap, cut new threads in the drilled holes in the

valve body. De-burr the gasket surface, making sure there are no high spots.

g. Install Sonnax checkballs using the locations on page 1.

h. Assemble the valve body gaskets and separator plate using normal procedures.

i. Install the Sonnax gasket, valve body retainer plate and two screws and torque

to 80-100 in-lb. (9-11Nm.) (Figure 9).

The following steps are to be performed during unit overhaul:

Step

Install Intermediate Clutch

Spiral Retaining Ring

1. Disassembly

Remove and discard the OE retaining ring from the intermediate roller clutch or

mechanical diode assembly.

2. Installation

a. Install the locking ring, cup side facing up as shown in (Figure 10).

b. Walk the spiral ring

into the retaining groove

as pictured (Figure 11).

NOTE: The locking

ring may need to be

moved for correct

spiral ring positioning.

c. Make sure the spiral

ring is fully seated in

the groove all the way

around the assembly.

d. Stake the locking

ring in six equally

spaced places around

the outside as shown

(Figure 12).

WARNINGWARNING

Bolts

Retainer

Plate

Gasket

Proper position of

retainer plate

sitting on

valve body.

Figure 9

Drill

& Tap

Figure 10

Spiral Ring

Locking Ring

Drum

Figure 11

Figure 8

Underside of 4R70W Valve Body

Partial Drill

Figure 12

Proper Staking

Technique

Proper Staking

Sequence

4R70E, 4R70W, 4R75E, 4R75W, AODE SURE CURE KIT

Instruction Booklet

800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com Page 7

TIME TESTED • INDUSTRY TRUSTED

Figure 14

Checkball

Location

Direct

Piston

Figure 15

No Leaks

Here

Figure 13

Seals

Output Shaft

Figure 16

Pump Cover

Seals

Input shaft

removed from

the forward drum.

Selective Seals:

Early = .110" thick

Late = .083" thick

Input Shaft

Seals

Step Install Output Shaft Seals

1. Disassembly & Inspection

a. Remove and discard the OE seals on the output shaft and replace with the

Sonnax seals as shown (Figure 13).

CAUTION: Don't nick the sealing ring lands as this can cause ring damage.

b. Inspect the checkball in the direct piston (Figure 14) as it is prone to sticking.

Clean and ush with solvent or WD-40® and reseat with a small punch and

hammer.

2. Installation & Testing

a. Assemble the direct clutch drum onto the output shaft (Figure 15).

c. Squirt ATF into the feed hole for direct clutch feed.

d. Apply 30–60 psi of air pressure into the feed hole.

e. Verify that there are no leaks

NOTE: If there are leaks, look for a worn bushing in the drum or leaks in the

ring grooves or the check ball seat.

Step Install Pump Cover

& Input Shaft Seals

1. Installation

a. Install seals onto the pump cover (Figure 16).

NOTE: Two sets of seals are included. Select the correct size/style for the applicat-

ion. The early style is a solid ring (.110" width), the late style is a butt-cut ring

(.083" width). Sizing of the early/solid style is required after installation. A mixture

of ATF and STP can be used to lubricate the solid seals while sizing with nger pressure.

b. Press input shaft out of the Forward drum. Sand ring surface lighty with

320 grit sand paper, using a crosshatch pattern (Figure 19).

c. Install solid seals onto the input shaft. Resize with your ngers. Pre-lube seals

and install into the stator for nal sizing.

2. Inspect & Verify

b. Inspect the check balls in the Forward drum shown (Figure 19), as they are

prone to sticking. Flush with solvent or WD-40® . Also be sure that the orice

shown, is free of debris that can come from parts washers.

e. An AOD Forward drum can be used to size the early stator seals (Figure 17).

e seals can also be sized with the Forward drum, although it may take a little

longer. Carefully use the back of a pick to work the seal into the drum and let

sit for a while so the seal will stay conformed.

f. Verify correct Forward piston return spring for the application you are working

on (Figure 18).

CAUTIONCAUTION

Page 8 800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com

4R70E, 4R70W, 4R75E, 4R75W, AODE SURE CURE KIT

Instruction Booklet

TIME TESTED • INDUSTRY TRUSTED

Figure 17

Use an AOD Forward drum to use as sizing tool, as it has

a larger bevel on it for the seals. You will need to remove

the input shaft (early seals only).

Set the stator down onto the AOD drum. Work the edges

of the seals with pick and ease the stator down into the

drum until you need it for assembly later.

Figure 18

Verify correct forward piston

return spring is used.

Clockwise

Wind

2000–Earlier

Counter Clockwise

Wind

2001–Later

Step Replace Overdrive

Servo Pin (Figure 20)

a. Use bore brush to remove sharp edges of overdrive servo pin bore in case.

b. Install O-rings on Sonnax servo pin.

c. Lubricate O-rings and roll pin on clean at surface to size O-rings into pin

grooves.

TECH TIP: If a rmer 3-4 shift is desired, place Sonnax washer on pin against

shoulder to pre-load spring.

NOTE: Following step is easier if piston is compressed in bench vise to facilitate

retaining clip installation.

d. Install OE spring seat followed by springs, piston and retaining clip.

e. Set servo travel according to OE specications.

Figure 20

O-Rings

Washer

Overdrive

Servo Pin

Piston

Sleeve

Servo

Piston

Large

Spring

Small

Spring

Retainer

Plate

Figure 19

Sand Here

• 1st Checkball

• 2nd Checkball is located

inside drum under piston.

This orfice ends up full of

debris when run through

parts washer. Be sure to clean.

Forward

Clutch

Drum

SC AODE 4R75E IN

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