• 4R100
• E4OD
• Fits '96-later, uses lower OE ratio

In Ford 4R100 and E4OD units, the Low/Reverse modulator plunger valve uses line pressure to control the position of the Low/Reverse modulator valve. Due to continu...Read More

Learn More

• 4R100
• E4OD
• Fits '95-later units only. Late-style with 3 grooves to front.

The OE rear case bushings in the Ford E4OD and 4R100 transmissions tend to spin out, causing damage to the case. After the case is damaged, it is impractical to re...Read More

Learn More

• 4R100
• E4OD
• Fits '95-later units. Late-style with 3 grooves to front, 1 groove to back.

The OE rear case bushings in the Ford E4OD and 4R100  transmissions tend to wear out prematurely. Bushing failure may be due to lack of lubrication, excessive jour...Read More

Learn More

• 4R100
• E4OD

In Ford 4R100 and E4OD units, movement between the center support and case causes wear on the rear of the center support where it contacts the case lugs and requir...Read More

Learn More

• 4R100
• E4OD

Ford E4OD and 4R100 transmissions are prone to case deflection because the OE design, which has a gap between the case and center support. When the center support ...Read More

Learn More

• 4R100
• E4OD
• Fits '96-later, 2-spool valve

Sonnax offers 36947-14 and 36948-22, solenoid regulator valves and their tool kits to salvage worn valve bodies and restore proper solenoid regulator valve (SRV) c...Read More

Learn More

• 4R100
• E4OD

Ford 4R100 and E4OD transmissions often suffer Reverse issues, which can be a direct result of wear and scoring of the casting bore by the OE manual valve.  The So...Read More

Learn More

• 4R100
• E4OD
• Fits '96-later units, uses higher OE ratio

In Ford 4R100 and E4OD units, the holding capacity of even the largest modulator plunger valve assembly does not supply enough line pressure to the low/reverse clu...Read More

Learn More

• 4R100
• E4OD
• Fits '97-later units with either style outboard fitting.

Sticking of bypass components, spring relaxation or poor ball seat in Ford 4R100 and E4OD units will allow the bypass to open at lower cracking pressure. This redu...Read More

Learn More

• 4R100
• E4OD

Some Ford E4OD and 4R100 transmissions have soft 1-2 or 2-3 shifts, intermittent harsh shifts or poor line rise complaints. These can be caused by ECU (electronic ...Read More

Learn More

• 4R100
• E4OD

Some Ford E4OD, 4R100 transmissions have soft 1-2 or 2-3 shifts, intermittent harsh shifts or poor line rise complaints. These can be caused by ECU (electronic con...Read More

Learn More

• 4R100
• E4OD
• Fits late E4OD '95–'98 and 4R100 non-PWM '98-later. If supplying a core for your solenoid, please order 36424B-RRP. If no core available, please order 36424B-C.

Rebuilders now have a no-hassle option of replacing worn or contaminated E4OD, 4R100 solenoid blocks with Sonnax 36424B-RRP and 36424D-RRP remanufactured solenoid ...Read More

Learn More

• 4R100
• E4OD

Ford E4OD and 4R100 units often display shifting irregularities which can be traced to problems with accumulator control valves. Wear ridges form as the valve move...Read More

Learn More

• 4R100
• E4OD
• Fits either of 2 locations.

Ford E4OD and 4R100 units often display shifting irregularities which can be traced to problems with accumulator control valves. Wear ridges form as the valve move...Read More

Learn More

• 4R100
• AX4N
• E4OD
• .427" dia.

Some Ford E4OD, 4R100 transmissions have soft 1-2 or 2-3 shifts, intermittent harsh shifts or poor line rise complaints. These can be caused by ECU (electronic con...Read More

Learn More

• 4R100
• AX4N
• E4OD
• Extreme heavy duty, .500" dia.

Some E4OD, 4R100 and AX4N transmissions have soft 1-2 or 2-3 shifts, intermittent harsh shifts or poor line rise complaints. These can be caused by ECU (electronic...Read More

Learn More

• 4R100

Sonnax turbine hub FD-HT-33HS has an updated design that improves oil flow for piston release for 4R100 units. On the factory 4R100 converter piston, release oil f...Read More

Learn More

• 4R100
• E4OD

Tool Kit for 36424-16K

Learn More

• 4R100
• E4OD

Sonnax bore sizing tool 36948-12 smooths and deburrs accumulator control valve bores to permit salvage of accumulator bodies. This tool allows the bore to be prope...Read More

Learn More

• 4R100
• E4OD
• Fits '95-later

Sonnax center support ball bearing is an OE equivalent replacement for damaged and worn center support ball bearings in '95-later Ford E4OD and 4R100 units.

Learn More

• 4R100
• E4OD

Tool Kit for 36947-13K

Learn More