A4LD / 4R44E / 4R55E / 5R55E
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Part #
Reference #
Repair kits
Qty
OH A4LD 85-94
- Part #
- NK53900E-MD
- Reference #
- 56002E
- Extra information
OH 4R44E,4R55E (A4LDE) 95-96
- Part #
- DP2309
- Reference #
- 56002H
- Extra information
- Transtec
OH 4R44E,4R55E (A4LDE) 95-96
- Part #
- NK53900RE-MD
- Reference #
- 56002H
- Extra information
Shift Correction pack 5R55E,4R44E Superi
- Part #
- K4R-5R55E
- Reference #
- 56165H
- Extra information
Description
4R44-E/4R55-E/5R55-E Kit
Shift Correction Package
This valve body kit deals with these problems:* Delay reverse* Soft sliding shifts* Overlap shift timing* 3rd gear slips* Slips or loss of forward* Low pressure dips* Regular & heavy duty options* Fits 95-11
Part #
Reference #
Filters
Qty
Filter 5R55E 4WD 95-up 4R44E, A4LD
- Part #
- 56710H
- Reference #
- 56010H
- Extra information
- Ford Transit
Part #
Reference #
Valvebodies
Qty
VB 5R44E/5R55E 4.0L 97-up
- Part #
- F056
- Reference #
- 56740C
- Core charge
- €180.00
- Extra information
Part #
Reference #
Valvebody Components / Transmission Specialties
Qty
Relief valves [10] A4LD, 4R44E
- Part #
- 10000-02K
- Reference #
- Extra information
Relief valve
High radius
- Material: Steel
Sonnax now offers replacements 10000-01K and 10000-02K for the various relief valves and drainback valves that are found in valve bodies. The design of the OE valves causes the separator plate and valve bore to wear. The result is leakage or valve sticking. The Sonnax valve is rounded so it seals against an unworn part of the separator plate and eliminates sticking problems.
The Sonnax valve is ideally suited for replacing the drainback valve on AXOD, AXOD-E, AX4N and AX4S units. The OE drainback valve frequently sticks in the bore. A common shop practice is to replace the OE drainback valve with a check ball. However, this practice requires shortening the spring. The Sonnax valve solves the sticking problem and is designed to work with the existing spring. No spring modifications are needed.
Although either part number can be used in multiple locations, it is suggested to use a relief with a radius close to original, maintaining the spring rate. On a severely worn plate or bore, the higher radius will allow for better plate contact and less bore hang-up.
- Works with existing spring
- No modifications needed
Boostvalve 4R44E,4R55E,5R55E
- Part #
- 37947-01K
- Reference #
- Extra information
Boostvalve kit
OE ratio
- Valve
- Sleeve
Some typical problems in 4R44E, 4R55E, 5R44E and 5R55E units are soft shifts, delayed reverse, poor modulator control and/or low line pressure in reverse. A worn boost valve is often the cause, allowing reverse and/or TV pressure to cross leak or exhaust.
- Sleeves are manufactured from highly wear-resistant aluminum alloy.
- Valves are made from hard-anodized aluminum for better wear resistance.
- Tight tolerances restore the hydraulic integrity of the assembly.
- Kits improve engagement related to loss of boost oil and increased line rise in forward and reverse
Symptoms: - Delayed Reverse
- Low line pressure
- Poor modulator control
- Soft shifts
Cause:
A worn boost valve or boost valve sleeve.
Correction:
Restore proper line pressure control with closely toleranced boost assemblies, made from wear-resistant materials.
Boostvalve 4R44E, 5R55E Increased ratio
- Part #
- 37947-03K
- Reference #
- Extra information
Boostvalve 4R44E, 5R55E Increased ratio
Increased Ratio
Some typical problems in 4R44E, 4R55E, 5R44E and 5R55E units are soft shifts, delayed reverse, poor modulator control and/or low line pressure in reverse. A worn boost valve is often the cause, allowing reverse and/or TV pressure to cross leak or exhaust.
- Sleeves are manufactured from highly wear-resistant aluminum alloy.
- Valves are made from hard-anodized aluminum for better wear resistance.
- Tight tolerances restore the hydraulic integrity of the assembly.
- Kits improve engagement related to loss of boost oil and increased line rise in forward and reverse.
Symptoms: - Delayed Reverse
- Low line pressure
- Poor modulator control
- Soft shifts
Cause:
A worn boost valve or boost valve sleeve.
Correction:
Restore proper line pressure control with closely toleranced boost assemblies, made from wear-resistant materials.
Pressure Regulator Sleevekit 4R44E,5R55E
- Part #
- 37947-05K
- Reference #
- Extra information
Pressure Regulator Sleevekit 4R44E,5R55E
- Sleeve
- Retaining Clip
- Solenoid Regulator Valve Spring
Constant oscillation of the pressure regulator valve can cause excessive wear at the balance line end of the bore, allowing balance line pressure to exhaust and preventing the pressure regulator valve from stroking to the lower line pressure position. Severe wear prevents line from entering the converter apply circuit, which will also restrict valuable cooler flow.
- Specially toleranced alloy aluminum sleeve is significantly more wear-resistant than the cast -aluminum valve body, and provides more contact surface with the valve for increased stability and durability.
- Kit includes a replacement solenoid regulator valve spring, which is often damaged during valve body disassembly.
- The tool kit 37947-TL5 also works for the 37947-07K TCC Modulator Sleeve Kit.
Symptoms: - Delayed engagement
- High line pressure
- Low cooler flow at idle
- Low line pressure
- Overheating
Cause:
Wear at the inboard end of the PR valve reduces force, which affects converter feed and engagements, also creating higher line pressure. Wear at the mid-outer end reduces line pressure as it leaks to sump.
Correction:
The Sonnax kits contain a highly wear resistant aluminum sleeve to fit with the OE anodized aluminum valve, providing additional support and proper line pressure control.
Required tool:
37947-TL5
TCC Modulator sleevekit 4R44E, 5R55R
- Part #
- 37947-07K
- Reference #
- Extra information
TCC Modulator sleevekit 4R44E, 5R55R
- Sleeve
- Spacer
- Solenoid Regulator Valve Spring
Constant oscillation of the torque converter clutch (TCC) modulator valve creates wear in the valve body bore, which can allow converter solenoid oil to exhaust. This prevents the TCC modulator valve from stroking fully to the apply position, which can create a no lockup complaint and/or set a 1741 code. Wear at the other end of the valve can prevent TCC release, resulting in cover dragging and stall on forward engagement.
- Specially toleranced alloy aluminum sleeve is significantly more wear-resistant than the cast aluminum valve body.
- Alloy aluminum sleeve provides more contact surface with the valve for increased stability and durability.
- Kit includes a replacement solenoid regulator valve spring, which is often damaged during valvebody disassembly.
- The tool kit also works with the 37947-05K pressure regulator valve sleeve kit.
Symptoms: - Code 1741
- Engine stall on FWD engagement
- Low cooler flow
- No lockup
- Poor converter fill & delayed engagements
Cause:
The modulator valve bore wears at either end or can stick in either position. Fluid control at the inboard circuit prevents lockup valve travel in reverse. The outer circuits affect converter flow and TCC apply through the solenoid.
Correction:
The Sonnax sleeve reduces cross leakage and improves TCC solenoid control over the valve and apply oil.
Required tool:
37947-TL5
TCC Regulator sleeve kit 4R44E, 5R55E
- Part #
- 37947-09K
- Reference #
- Extra information
TCC Regulator sleeve kit 4R44E, 5R55E
- Sleeve
- End Plug
- Coast Clutch Valve Spring
- Solenoid Regulator Valve Spring
- Spring Pins (2)
- L Shaped Retaining Pin
- O-rings (2)
- Lube Modification Plugs (3)
Symptoms: - Code 628, 1741
- High TCC slip RPM
- Overheated converter
- Overheated fluid
- TCC apply concerns
- TCC cycling
- TCC surge
Cause:
Converter apply pressure is reduced as the bore wears and the OE end plugs become loose.
Correction:
This repair eliminates the inner plug by incorporating it into the sleeve, which then repairs the TCC regulator valve bore. The large end plug that retains the assembly is sealed and has increased surface contact to avoid movement.
Required tool:
37947-TL5
End plug kit 4R44E, 5R55E
- Part #
- 37947-13K
- Reference #
- Extra information
End plug kit 4R44E, 5R55E
- Small End Plugs (2)
- Large End Plug
- Small O-Rings (5)
- Large O-Rings (3)
- Checkballs (4)
- L Retaining Pins (4)
Symptoms: - Erratic shifts
- Gear ratio & solenoid codes
- No 3rd when hot
- No 4th when hot
- Shift timing change with temperature
Cause:
Wear of bore end plugs allowing solenoid feed oil to exhaust.
Correction:
The Sonnax kit contains O-ringed end plugs to positively seal the bores.
Coast clutch valve 4R44E, 5R55E
- Part #
- 37947-33K
- Reference #
- Extra information
Coast clutch valve 4R44E, 5R55E
• Valve
• Spring
• O-Ring
• End Plug
The Sonnax oversized coast clutch valve kit 37947-33K and tooling salvages the valve body and restores proper coast clutch function in either style unit.
• Oversized valve allows valve body to be refurbished and salvaged.
• Hard-coat anodized valve resists wear.
• Elongated front spool adds stability and prevents blow-by leakage.
• Annular groove centers the valve hydraulically to prevent wear.
• Recalibrated spring provides proper regulating pressure for oversized valve.
• O-ringed end plug positively seals bore to help maintain coast clutch and TCC pressures.
Symptoms: • No 2nd (5R44E/55E) • No 4th (4R44E/55E) • No 5th (5R44E/55E) • No coast clutch apply • No engine braking in D3 to low Cause:
Wear at the coast clutch valve bore or oil loss across the plug that separates the coast clutch valve from the converter regulator valve. The overdrive servo release oil will not vent to allow servo apply.
Correction:
The Sonnax oversized coast clutch valve kit allows the valve body bore to be refurbished to restore the proper clearance with the valve and eliminate leakage.
NOTE: Although this valve can be used on any valve body independent of other repairs, we strongly suggest this kit be used with Sonnax Converter Regulator Sleeve Kit37947-09K. These two line-ups share the same bore and are both commonly worn.
TCC reg.valve 5R55E,4R44E Standard
- Part #
- 37947-38
- Reference #
- Extra information
TCC reg.valve 5R55E,4R44E Standard
OE size
- Valve may be used with original OE casting.
- Valve may also be used with Sonnax 37947-09K sleeve kit.
- Valve has been hard-coat anodized to prevent scratching on the critical spools.
Symptoms: - Code 628, 1741
- TCC apply concerns
Cause:
Debris and constant oscillation of the converter clutch regulator valve can create scratches on the critical valve spools.
Correction:
Sonnax offers a direct replacement TCC regulator valve, which may be used either in the original casting bore or in conjunction with the Sonnax 37947-09K sleeve when the bore cannot be salvaged with an OE-diameter valve.
TCC Springkit 4R44E, 5R55E, 4R55E
- Part #
- 37947-46K
- Reference #
- Extra information
TCC Springkit 4R44E, 5R55E, 4R55E
- Outer Springs (5) White
- Inner Springs (5) Plain
The 2.3L TCC regulator valve has a lower spring rate and lower apply pressure than the 4.0L. If the incorrect core is installed or the springs have been damaged, the TCC apply pressure is reduced and slippage occurs. The springs in the Sonnax kit 37947-46K have been designed to match the 4.0L calibration. The kit can be used to replace weak, broken or lost springs in 4.0L applications or to convert a 2.3L valve body core for use in a 4.0L application.
- Direct replacement 4.0L springs salvage or upgrade the valve body.
- Spring kit allows conversion of 2.3L valve body to 4.0L application.
Symptoms:
- Code P0741
- Damaged valve body casting
- Low spring rate on 2.3L TCC regulator valve
- Low TCC apply pressure
Cause:
Incorrect spring rate for the TCC regulator valve.
Correction:
Recalibrate TCC apply to 4.0L rate.
NOTE: Not recommended for usage in 2.3L applications as firmer apply will result.
Sleeve Man.levr A4LD,AOD,AODE
- Part #
- 56361-01K
- Reference #
- Extra information
Sleeve Man.levr A4LD,AOD,AODE
- Sleeve
- Retaining Pin 3mm
- Retaining Pin .125"
- Sleeve is made of high-quality aluminum for long life and wear resistance.
- 1/8-inch and 3mm manual shaft retaining pins are included with sleeve kit.
- On A4LD units, keeps manual valve from moving out of position.
- A sleeve installation tool is provided to press the aluminum sleeve into the case.
- Tool kit also services Chrysler manual shaft sleeve 22179-02 for all RWD Chrysler applications.
Symptoms: - Leaking manual shaft case seal
- Manual valve moves out of position
Cause:
Worn case bore allows excessive movement of the manual shaft, letting oil leak past manual shaft seal.
Correction:
Oversize the manual shaft hole with tool kit and install aluminum sleeve to prevent manual shaft movement and leaks.
Required tool:
56361-TL
Sleeve r.serv.A4LD,4R44E,5R55E
- Part #
- 56532-01K
- Reference #
- Extra information
Reverse Servo Sleeve Kit
• Sleeve
• Back-up Ring
• O-Ring
The reverse servo bore on the A4LD case can become scored due to repeated oscillation of the reverse servo piston within the bore during normal operation. Once this bore is damaged, the case must be scrapped. Install the Sonnax A4LD Reverse Servo Sleeve Kit 56532-01K to refurbish the case bore.
• Kit contains a steel sleeve, O-ring and a back-up ring.
• Instructions are included for machining the servo piston assembly by simply turning the smaller piston journal 1/16" smaller.
Symptoms: • Delayed Forward clutch • Forward clutch failure • Rear servo bore wear • Reverse band failure Cause:
Heavy scoring at the case bore for the inner piston seal allows drive oil loss, which can cause forward clutch and/or reverse band failure.
Correction:
The reverse servo sleeve kit restores the function of the reverse piston and salvages the case.
Modulator Valve oversize A4LD
- Part #
- 56833-01K
- Reference #
- Extra information
Modulator Valve oversize A4LD
- Valve
- Adjustment Screw
The continuous oscillation of the modulator valve wears the case bore, allowing oil circuit leakage. Line pressure and modulated TV pressure can cross leak or go to exhaust, resulting in uncontrollable shift timing, delayed egagements, harsh or slide shifts, poor line rise, and/or no TV control. Sonnax offers an oversized modulator valve kit 56833-01K that restores thehydraulic integrity of the circuits. Reamer kit 56833-TL must be used to accommodate the oversized valve.
- Valve is manufactured from hard-coat anodized aluminum to prevent wear.
- A longer modulator adjustment screw is included to properly preload the modulator spring and compensate for the oversized valve.
Required tool:
56833-TL
NOTE: A modulator with an adjustment screw must be used with this oversized valve.
MANUALVALVE INDEX A4LD
- Part #
- 56947-01
- Reference #
- Extra information
Manual valve index
Vehicles with an A4LD transmission commonly have such problems as burned forward clutches, binding condition when the selector lever is pulled from park, or delayed reverse. The forward clutch failure is often caused by a manual valve indexed out of position, thus allowing line pressure to bleed into the forward clutch circuit in park position. The instability of the linkage also creates a manual valve misalignment and delayed reverse.
Attaching the manual valve index 56947-01 to the end of the manual valve will overcome the loose linkage tolerance and prevent the manual valve from opening up the forward clutch circuit in park.
• The tight cross-hole tolerance on the manual valve index adds stability to the loose linkage.
• Manual valve index has been lengthened to allow it to act as a stop to prevent the forward clutch circuit from being opened in park.
Symptoms: • Burnt Forward clutch • Delayed Reverse • Manual lever binds in Park position Cause:
A manual valve indexed out of position and/or linkage instability allows line pressure to feed the forward clutch circuit in park.
Correction:
This manual valve index will overcome the loose linkage tolerance and correctly position the manual valve.
Pressure Regulator Valve A4LD OS
- Part #
- 56947-06K
- Reference #
- Extra information
Pressure Regulator Valve A4LD OS
- Pressure Regulator Valve
- Spring Small
- Spring Large
- Boost Valve (High Ratio)
- Boost Sleeve (High Ratio)
- O-Rings (2)
Symptoms: - Low line pressure
- Soft shifts
- TCC apply concerns
Cause:
A worn valve body bore allows line to leak to exhaust.
Correction:
This oversized valve and reamer kit resizes the valve bore and restores the hydraulic integrity of the circuit.
Required tool:
56947-TL
Endplug-kit A4LD
- Part #
- 56947-14K
- Reference #
- Extra information
Endplug-kit A4LD
- End Plugs, Small (2)
- O-Rings, Small (3)
- End Plug, Medium
- O-Rings, Medium (2)
- End Plugs, Large (3)
- O-Rings, Large (4)
Symptoms: - Delayed Reverse
- Erratic shift timing
- Low line pressure
- Low throttle pressure
- Oil leaks
Cause:
Valves cycling in various bores strike the end plugs, creating excess clearance between plug and bore. Worn plugs can leak critical throttle and reverse pressure.
Correction:
Sonnax O-ringed plug kit eliminates leakage at the bore plug.
Anti-shud.spr.A4LD [2]
- Part #
- 56995A
- Reference #
- Extra information
Anti-shud.spr.A4LD [2]
Package quantity: 2
- Stronger spring delays lockup by approximately 10 mph.
- Stronger spring will release the lockup if the TCC electrical circuit or solenoid fails.
Symptoms: - Early lockup
- Engine chuggle
- TCC shudder on coastdown
Cause:
A weak converter clutch shift valve spring allows early TCC apply.
Correction:
This spring is stiffer than the OE version and strong enough to stroke the converter clutch shift valve back and release the converter clutch.
NOTE: This is a shudder related to the converter clutch shift valve, not the shuttle valve.
Boostvalve A4LD small OEM-styl
- Part #
- 56947-05K
- Reference #
- 56947-04K
- Extra information
Boostvalve A4LD small OEM-styl
- Sleeve
- Valve
Small Ratio, OEM Style
Some typical problems in vehicles with a Ford A4LD transmission are low line pressure in forward or reverse, soft upshifts, delayed reverse and poor modulator control. These complaints can often be caused by a worn boost sleeve, which allows reverse and/or TV pressure to cross leak or exhaust. Sonnax boost valve kit 56947-05K replaces worn parts and matches the OE-style, low-ratio valve.
Symptoms: - Delayed Reverse
- Low line pressure in Forward
- Low line pressure in Reverse
- Poor modulator control
- Soft upshifts
Cause:
Worn boost sleeve allows reverse and/or TV pressure to cross leak or exhaust.
Correction:
Sonnax replacement boost valve kit restores hydraulic integrity to the bore.
Part #
Reference #
Frictions
Qty
Friction OD 5R55N/S/W 97-up directional
- Part #
- 041714A
- Reference #
- 16100B
- Extra information
Friction A4LDE 97-up High/Rev directiona
- Part #
- 041712A
- Reference #
- 56106B
- Extra information
Friction A4LD/C3 Forward -89 thick
- Part #
- 041700
- Reference #
- 56108
- Extra information
Friction A4LD forward 90- dun [6]
- Part #
- 2378
- Reference #
- 56108A
- Extra information
- Thickness: 0.069''/1.75mm. 72 Teeth Outside diameter: 4.655" 118.491mm.
Friction A4LDE 97-up Forward Directional
- Part #
- 041710A
- Reference #
- 56108B
- Extra information
Part #
Reference #
Steels
Qty
Part #
Reference #
Bands
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Band Int/OD A4LD,4R44E,5R55E,5R55N/W
- Part #
- 56320A
- Reference #
- 16022E
- Extra information
Part #
Reference #
Pressure Plates
Qty
Pressure Plate Direct A4LD, 5R55N/W/S
- Part #
- 56140B
- Reference #
- 56140B
- Extra information
Part #
Reference #
Bushings
Qty
Part #
Reference #
Seals
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Seal pump 5R55E,A4LD Transit, 5R55N
- Part #
- 53799
- Reference #
- 56070B
- Extra information
- 1017206
Part #
Reference #
Gaskets
Qty
Pangasket A4LD / 4R44E/ 5R55E
- Part #
- 53700LXD
- Reference #
- 56300E
- Extra information
- 711527A191A 71152-7A191-A
Part #
Reference #
Washers & Bearings
Qty
Part #
Reference #
Electrical Components
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Part #
Reference #
Sprags & One way clutches
Qty
Part #
Reference #
Pistons
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Part #
Reference #
Hard Parts
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Planet Assembly Rear A4LD
- Part #
- K27950-R
- Reference #
- 56584B/594/604
- Extra information
Planet Rear A4LD 6 weels Steel used
- Part #
- 27950B-R
- Reference #
- 56584EA
- Extra information
Cent.support 4R44E w/sensor 85-96
- Part #
- 27902F
- Reference #
- 56630B
- Extra information
Cent.supp. 4R44E w/hole speedsensor
- Part #
- 56630B
- Reference #
- 56630B
- Extra information
Race A4LD inner 4.0L
- Part #
- 56600B
- Reference #
- 56664B
- Extra information
Low Sprag Inner Race
Part No. 56600B4.0L (2.70" race diameter)
Sonnax low sprag inner race 56600B for Ford 4R44E, 4R55E, 5R44E, 5R55E and A4LD units is made of through-hardened AISI 52100 steel with longer, deeper cutting serrations to ensure a tight fit after installation.
Sonnax drill jig 56600-DJ is required to install this part. The jig allows for easy disassembly and installation of the inner race and eliminates the risk of damaging the case.
Part #
Reference #
Tools
Qty
Reamerkit 4R44E, 5R55E
- Part #
- 37947-TL5
- Reference #
- Extra information
Tool kit
- Sleeve
- Retaining Clip
- Spring for solenoid regulator valve
Tool Kit for 37947-05K & 37947-07K
Reamerkit 4R44E, 5R55E TCC reg.
- Part #
- 37947-TL9
- Reference #
- Extra information
Tool kit
- Core Drill
- Drill Jig
- Reamer
- Reamer Jig
- Dowel Pin
Tool Kit for 37947-09K
Reamer 4R44E, 5R55E Coast cl.
- Part #
- 37947-TL33
- Reference #
- Extra information
Reamer 4R44E, 5R55E Coast cl.
- Reamers (2)
- Reamer Jig
Tool Kit for 37947-33K
Drill jig A4LD
- Part #
- 56600-DJ
- Reference #
- Extra information
Drill jig A4LD
- Drill Jig
- Dowel Pin
Sonnax drill jig 56600-DJ allows for easy disassembly and installation of the Ford 4R44E, 4R55E, 5R55E and A4LD inner race and eliminates the risk of damaging the case. This is a required tool for installing Sonnax low sprag inner race 56600B.
Modulator Reamer tool A4LD
- Part #
- 56833-TL
- Reference #
- Extra information
Modulator Reamer tool A4LD
- Reamer
- Reamer Jig
Tool Kit for 56833-01K
NOTE: A modulator with an adjustment screw must be used with this oversized valve.
Part #
Reference #
Various
Qty
Spacer Crankshaft A4LD 6 hole 4R44E
- Part #
- 56000-CS6
- Reference #
- Extra information
The crankshaft spacer in A4LD, 4R44E and 5R55E applications is prone to cracking and wear because the powdered metal material of the OE spacer cannot provide adequate support for the torque converter pilot. Once the spacer wears or breaks, the result is converter misalignment.
- Sonnax billet steel crankshaft spacers are significantly more durable than the OE powdered metal version.
- Eliminates concern of repeat breakage and wear.
- Both are simple drop-in replacements.
- Material: Steel
- Bolt Holes: 6
- Outer Dia.: 2.972"
- Inner Dia.: 0.751"
- Thickness: 0.875"
Crankshaft spacer A4LD 8 hole 4R44E
- Part #
- 56000-CS8
- Reference #
- Extra information
Crankshaft Spacer
The crankshaft spacer in A4LD, 4R44E and 5R55E applications is prone to cracking and wear because the powdered metal material of the OE spacer cannot provide adequate support for the torque converter pilot. Once the spacer wears or breaks, the result is converter misalignment.
- Sonnax billet steel crankshaft spacers are significantly more durable than the OE powdered metal version.
- Eliminates concern of repeat breakage and wear.
- Both are simple drop-in replacements.
- Material: Steel
- Bolt Holes: 8
- Outer Dia.: 2.972"
- Inner Dia.: 0.751"
- Thickness: 0.872"
Part #
Reference #
Torque Converters
Qty