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4L80E TH400 Front/Rear Unit Endplay Shim - Upgraded (Pack of 10)

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Now: $10.95

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4L80E TH400 HD Case Bushing Kit | Sonnax

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Now: $57.95

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4L80E TH400 HD Forward Clutch Hub Front Washer (Pack of 5) 0.078"

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Now: $49.95

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4L80E TH400 HD Forward Clutch Hub Washer - Rear (Pack of 5) 0.078''

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Now: $19.95

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4L80E TH400 HD Forward Clutch Hub Washer - Rear (Pack of 5) 0.094"

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Now: $31.95

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4L80E TH400 Heavy Duty Forward Clutch Hub

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Now: $149.95

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4L80E TH400 Output & Reaction Planetary Rebuild Kit (1969-1998)

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Now: $33.95

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4L80E Wiring Harness Connector Bracket (Late Style Only)

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Now: $9.95

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4R100 E4OD Bore Sizing Tool

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Now: $99.95

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4R100 E4OD Center Support Ball Bearing (1995-UP)

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Now: $22.95

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4R100 Sonnax Shift Performance Pack

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Now: $199.95

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4R100 TCC Control Plunger Valve Kit (PWM) Sonnax

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Now: $29.95

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4R44E 4R55E 5R44E 5R55E Boost Valve Kit (OE Ratio) Sonnax

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Now: $38.95

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4R44E 4R55E 5R44E 5R55E A4LD C3 Reverse Servo Sleeve Kit - Sonnax

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Now: $34.95

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Sonnax

4R44E 4R55E 5R44E 5R55E A4LD Crankshaft Spacer (6-Bolt Holes) Sonnax

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Now: $23.95
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4R44E 4R55E 5R44E 5R55E A4LD Crankshaft Spacer (8-Bolt Holes) Sonnax

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Now: $27.95

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Sonnax

4R44E 4R55E 5R44E 5R55E A4LD Relief Valve (10-Pack) Sonnax
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4R44E 4R55E 5R44E 5R55E Boost Valve Kit (Increased Ratio) Sonnax

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Now: $42.95

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4R44E 4R55E 5R44E 5R55E Elevated Pressure Main Pressure Regulator Spring (20-Pack) Sonnax
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4R44E 4R55E 5R44E 5R55E HD TCC Regulator Valve Spring Kit (5-Pack) Sonnax

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4L80E TH400 Front/Rear Unit Endplay Shim - Upgraded (Pack of 10)

It is often difficult to reduce front unit endplay on 400 or 4L80/85-E units with excessive spline wear. Normal component wear allows excess forward and direct drum travel. This travel or free-play...

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Now: $10.95
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4L80E TH400 HD Case Bushing Kit | Sonnax

Case bushing walkout and thrust washer wear are common issues in the GM TH400, 4L80-E and 4L85-E units. Sonnax heavy duty case bushing kit 34006-SPB combines the tried and true no-walk case bushing...

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Now: $57.95
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4L80E TH400 HD Forward Clutch Hub Front Washer (Pack of 5) 0.078"

Pack of 5 Sonnax forward clutch hub front washer 34298-078 replaces the OE .063" thick washer between the forward clutch hub and the forward drum. It is .015" thicker than OE and is the optimal way...

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Now: $49.95
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4L80E TH400 HD Forward Clutch Hub Washer - Rear (Pack of 5) 0.078''

Pack of 5 Sonnax Part Number: 34301-078 A pump that has been resurfaced or accumulated shaft spline wear creates excessive endplay of the forward and direct drums. This reduces sealing ring, clutch,...

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Now: $19.95
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4L80E TH400 HD Forward Clutch Hub Washer - Rear (Pack of 5) 0.094"

A pump that has been resurfaced or accumulated shaft spline wear creates excessive endplay of the forward and direct drums. This reduces sealing ring, clutch, bearing, and thrust washer life. Having...

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Now: $31.95
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4L80E TH400 Heavy Duty Forward Clutch Hub

Sonnax heavy duty forward clutch hub 34322-01 is an ideal upgrade over OE hubs in GM 400, 425, 4L80-E and 4L85-E applications. It is made from 1045 steel forging and features a thicker cross-section...

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Now: $149.95
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4L80E TH400 Output & Reaction Planetary Rebuild Kit (1969-1998)

Planetary Rebuild KitPart No. 34875RK Output & reaction planetaries, '69–'98 with .750" wide pinion gears Contents Pinion Pins (4) Pinion Rollers (72) Pinion Washers (8) Round...

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Now: $33.95
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4L80E Wiring Harness Connector Bracket (Late Style Only)

4L80-E, 4L85-E Wiring Harness Connector BracketPart No. 34998-01K FITS LATE STYLE CONNECTOR ONLY!! It is common for one of the three plastic retention tabs to break on the wiring harness...

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Now: $9.95
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4R100 E4OD Bore Sizing Tool

4R100, E4OD Bore Sizing ToolPart No. 36948-12 Sonnax bore sizing tool 36948-12 smooths and deburrs accumulator control valve bores to permit salvage of accumulator bodies. This tool allows...

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Now: $99.95
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4R100 E4OD Center Support Ball Bearing (1995-UP)

4R100, E4OD Center Support Ball BearingPart No. 96423-01 The 96423-01 Center Support Ball Bearing is an OE equivalent replacement for damaged and worn center support ball bearings in the...

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Now: $22.95
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4R100 Sonnax Shift Performance Pack

4R100 Performance PackPart No. HP-4R100-01 Tooling Needed: 36948-12 (Recommended) T36008A (Recommended) Sonnax Performance Pack HP-4R100-01 offers innovative, heavy-duty...

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Now: $199.95
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4R100 TCC Control Plunger Valve Kit (PWM) Sonnax

4R100 TCC Control Plunger Valve KitPart No. 36424-08K Fits PWM units only. Ford 4R100 PWM units use a plunger valve assembly and coil spring to cushion the TCC control valve. That assembly uses...

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Now: $29.95
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4R44E 4R55E 5R44E 5R55E Boost Valve Kit (OE Ratio) Sonnax

4R44E, 4R55E, 5R44E, 5R55E Boost Valve KitPart No. 37947-01K OE Ratio Some typical problems in Ford 4R44E, 4R55E, 5R44E and 5R55E units are soft shifts, delayed Reverse, poor...

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Now: $38.95
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4R44E 4R55E 5R44E 5R55E A4LD C3 Reverse Servo Sleeve Kit - Sonnax

4R44E, 4R55E, 5R44E, 5R55E, A4LD, C3 Reverse Servo Sleeve KitPart No. 56532-01K The reverse servo bore found on the case of listed Ford transmissions can become scored...

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Now: $34.95
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4R44E 4R55E 5R44E 5R55E A4LD Crankshaft Spacer (6-Bolt Holes) Sonnax

4R44E, 4R55E, 5R44E, 5R55E, A4LD Crankshaft SpacerPart No. 56000-CS6 The crankshaft spacer in A4LD, 4R44E and 5R55E applications is prone to cracking and wear because the...

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Now: $23.95
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Sonnax

4R44E 4R55E 5R44E 5R55E A4LD Crankshaft Spacer (8-Bolt Holes) Sonnax

4R44E, 4R55E, 5R44E, 5R55E, A4LD Crankshaft SpacerPart No. 56000-CS8 The crankshaft spacer in A4LD, 4R44E and 5R55E applications is prone to cracking and wear because the...

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Now: $27.95
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4R44E 4R55E 5R44E 5R55E A4LD Relief Valve (10-Pack) Sonnax

4R44E, 4R55E, 5R44E, 5R55E, A4LD Relief ValvePart No. 10000-02K High radius Package Quantity: 10 Sonnax offers relief valve 10000-01K to replace the...

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4R44E 4R55E 5R44E 5R55E Boost Valve Kit (Increased Ratio) Sonnax

4R44E, 4R55E, 5R44E, 5R55E Boost Valve KitPart No. 37947-03K Increased Ratio Some typical problems in Ford 4R44E, 4R55E, 5R44E and 5R55E units are soft shifts, delayed Reverse,...

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Now: $42.95
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Sonnax

4R44E 4R55E 5R44E 5R55E Elevated Pressure Main Pressure Regulator Spring (20-Pack) Sonnax

4R44E, 4R55E, 5R44E, 5R55E Elevated Pressure Main Pressure Regulator SpringPart No. 56947-17 Package Quantity: 20 The OE springs in many Ford transmissions wear or become...

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4R44E 4R55E 5R44E 5R55E HD TCC Regulator Valve Spring Kit (5-Pack) Sonnax

4R44E, 4R55E, 5R44E, 5R55E TCC Regulator Valve Spring KitPart No. 37947-46K The 2.3L TCC regulator valve has a lower spring rate and lower apply pressure than the 4.0L. If the...

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