A4LD Performance Transmission and Parts from PATC, A4LD

A 4 L D / 5R55N-W-S

4R44E / 4R55E / 5R55E

Performance A4LD, using a 4 liter transmission with a 2.3, 2.8, 2.9 or 3 liter bell housing. This transmission comes with everything in the A4 Wake Up Kit plus a double clutch 4 liter torque converter and 2 Red Eagle or Black bands. The 4 liter transmissions came from the factory with stronger planet gears and more clutches. Cost $1865.00

1993 Ford Ranger with a 4.0L Blower Motor

#K15. Combo Kit. Fits A4LD transmissions, 1985 to 1994. You get an Alto master rebuild kit plus a Transgo Shift Kit, 2 large servos for 2nd and overdrive, 2 performance black carbon fiber bands, Sonnax oversize pressure boost valve and a 3rd gear clutch - Alto Power Pack that will give you up to seven clutches. This will give you one more clutch in 3rd and reverse than you have now. Stock has 4 to 6 clutches. All of this for $309.00. SAVE $31.00 HERE !, 9% OFF

#A4. A4LD Wake up kit (1985-1994). You get a Transgo Shift Kit, large servos for 2nd and overdrive, oversize pressure boost valve and a 3rd gear clutch pack that will give you up to seven clutches. Stock has 4 to 6 clutches. (No master kit or bands.) Cost $185.00

#A4LD-SK. A4LD Transgo Shift Correction Kit. Cost $36.00

#A4LDS. A4LD SuperSize Performance Servo for second gear and overdrive. You need 2 per transmission. This has been needed for a long time. Cost $29.00

#A4LDPV. A4LD oversize pressure boost valve (1985-1994). When rebuilding high performance or heavy duty A4LD transmissions, it is common to find the boost sleeve in the valve body worn. This wear causes low line pressure, soft upshifts, delayed reverse and poor modulator control, resulting in poor performance or premature failure for your high performance or heavy duty rebuild. These complaints can often be caused by a worn boost sleeve, which allows reverse and/or TV pressure to cross leak or exhaust. Cost $35.00

56947-02K, 56947-03K, 56947-04K and 56947-05K are A4LD factory style large and small boost valve kits

37947-01K and 37947-03K are 4R44E/55E, 5R44R/55E Boost Valve & Sleeve Kits

#5R55EPV. 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. Sonnax now offers a replacement boost valve kit for these units to increase the ratio for slightly higher line pressures. Cost $43.00

Sonnax Part Summary

The OE springs in many Ford transmissions wear or become fatigued causing low baseline pressure. OEM replacements are hard to find, and many aftermarket springs have unacceptably high spring rates. The Sonnax “elevated pressure” main pressure regulator springs are intended to provide a minimal baseline pressure increase (approximately 10 PSI over OE baseline pressure), enough of an increase to help restore full line pressure. The springs may be used to replace worn OE springs and also to correct low line pressure caused by worn transmissions. This price is for 1 spring. Cost $2.00

E4OD / 4R100 #36424-10

Non-Diesel C6 #36946-13

4R / 5R44E / 55E #56947-17

#4R. A4LD / 4R44E / 4R55E / 5R44E 4 liter torque converter with furnace brazed fins. Cost $199.00

#4R2. Performance A4LD / 4R44E / 4R55E / 5R44E torque converter with furnace brazed fins, all bearing construction, hardened splines, no core charge and comes in stall speeds of 1800 to 3000 RPM. Cost $349.00

Performance V8 5R55S Stall Converters

#5R8. Fits 2005 up 4.6 Liter V8 Mustangs with the 5R55S transmission. Can be ordered with stall speeds up to 3000 RPM and has all bearing construction, furnace brazed fins plus a carbon fiber clutch lining. No trade-in on this one. This performance 5R55S torque converter is built using a Billet Lock-Up Clutch Piston to eliminate the piston rattling problem with the stock type piston. This feature alone is worth $100.00. No down time, keep your old stock converter. No core charge. Can be ordered in stall speeds of 1800 to 3000 RPM. Rated at 600 horse power. Dollar for dollar this converter will do more for your time than any other part. Cost $575.00

Performance V6 5R55S Stall Converter

#5R. Fits 2005 up 4 Liter V6 Mustangs with the 5R55S transmission. This converter will stall at 3000 RPM and has all bearing construction, furnace brazed fins plus a carbon fiber clutch lining. No trade-in on this one. In the past you had to send your torque converter in to be redone, no more. Be one of the first to own this hot V6 stall converter. You'll feel a big difference on the first take off. This torque converter comes with a new OEM pre-drilled flexplate as a two piece set. This torque converter will lower your 60 foot time .2 seconds and the 1/4 mile time by .5 seconds. The competitions 3000 stall speed converter was tested in the 1/4 mile then removed, and a PATC 3000 stall speed converter was installed and tested, resulting in a .2 second lower time in the 1/4 mile. This was due to the PATC converter being a smaller diameter than stock. No down time, keep your old stock converter. No core charge. Can be special ordered in stall speeds of 2000 to 3500. Dollar for dollar this converter will do more for your time than any other part. Cost $499.00

#TA4LD. A4LD / C3 / 4R44E / 4R55E / 5R55E / 5R55N Pump Gear Alignment Tool. Always use a pump gear alignment tool when setting up your A4LD type pump or severe pump, pump gear and converter hub damage will occur. Cost $62.00

“Increased Pressure” Main Pressure Regulator Springs

#S1 (5R55S / W only), #S2 (5R55N only). This Sonnax spring is designed to restore or increase line pressure up to 10 PSI over OEM specifications while avoiding excessively high line pressure and harsh shifts. Cost for ONE Spring. $6.00

Features & Benefits

• Restores or increases line pressure up to 10 PSI.

• Replaces lost original springs.

• No harsh shift effects of high line pressure.

• Drop-in installation requires no modifications.

#S1. 5R55S / W.

#S2. 5R55N.

#S3. Oversize Torque Converter Clutch Modulator Sleeve and Plunger Assembly. Some common complaints associated with a 5R55S / 5R55W are high TCC slip RPMs under increasing loads, slip codes, and converter apply or release concerns. These complaints are often caused by wear at the ID of the TCC modulator plunger valve sleeve, due to constant oscillation by the pulse width modulated TCC solenoid. This plunger valve positions the TCC modulator valve, which feeds line to the apply circuit, which controls slip rate. Wear of the sleeve will allow the TCC slip rate to continue to rise, and could prevent full lockup. The Sonnax assemblies restore hydraulic integrity to the TCC solenoid circuit with precisely toleranced parts. The elevated modulated pressure will not raise apply pressure to the point of TCC piston fatigue, and will result in firmer TCC apply and reduced slip RPM in heavier use applications. Cost $37.00

Features & Benefits

• Increased ratio provides a firmer and quicker lockup feel.

• OEM stock ratio restores original lockup feel.

• Precisely toleranced parts restore hydraulic integrity.

• Hard-coat anodized aluminum valves resists wear.

• High-grade aluminum sleeves are extremely wear-resistant.

#S4. 5R55N Only, 4-3 Pre-Stroke Valve Spring. Complaints of no 4th or 5th gear, codes 734 and / or 735 and solenoid C codes can occur on the 5R55N due to a broken 4-3 pre-stroke valve spring. The 4-3 pre-stroke valve controls the apply and release rate of the intermediate servo and direct clutch, which should be applied in 4th and 5th gear. The Sonnax 4-3 Pre-Stroke Valve Spring addresses these complaints. This spring is not used on 5R55W and 5R55S units. Cost $6.00

#5R55N-1. Superior's new 5R55S / 5R55N / 5R55W Line Pressure Relief Valve. The 5R55N and 5R55W may exhibit a no movement or slipping condition after start-up. This condition can be caused from a sticking line pressure relief valve in the pump. Superior's new relief valve insures consistent pressure control with a no stick blow-off ball design. Cost $44.00

4R44E / 4R55E / 5R55E Boost Valve & Sleeve Kit

#445. This Steel Series replacement boost valve & sleeve kit gives you a perfectly dialed in ratio slightly higher than the stock valve. This new valve helps eliminate all the problems associated with a worn out stock aluminum valve such as low line pressure, softer shifts and cross leaks. As with all Superior boost valves this valve is made out of 100% hardened steel & made in the U.S.A. Cost $25.00

#5-A4LD. Fits A4LD / 4R44E / 4R55E - 1985-1996. Alto direct clutch PowerPack, adds 1 extra clutch. If you have 5 clutches now you get 6. If you have 6 clutches now you get 7. Will not work with a 4 clutch drum. Cost $56.00

#5C. Fits A4LD / 4R44E / 4R55E - 1985-1996. Carbon Fiber bands for 2nd and overdrive. Two required per transmission. This band will have firm shifts. Cost EACH $25.00

#5B. Fits A4LD / 4R44E / 4R55E - 1985-1996. Alto Red Eagle bands for 2nd and overdrive. Two required per transmission. Cost EACH $17.00

#A4LD-B. A4LD Rebuild Manual. Cost $28.00

A4LD Master Rebuild Kits

A4LD 1985 -1989, Cost $85.00

A4LD 1990 - early 1995, Cost $88.00

#56000. A4LD 6 bolt crankshaft spacer for the 2.8, 2.9 and 4 liter. This is the torque converter pilot bushing that goes bewteen the crankshaft and flywheel. The stock part is prone to cracking. The Sonnax part is made of better steel and has a 1/16 of an inch deeper pilot area to support the converter better. Cost $15.00

#56000-2. A4LD 5R55E 8 bolt 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. Cost $15.00

56000-CS6 and 56000-C8 are A4LD, 4R44E, 4r/5R55E Crankshaft Spacer

A4LD Cast Aluminum Pans

#A4LD. Ford 4R55E, 4R44E, 5R55E and A4LD.
Fits Ford Range and other vehicles with the 4R55E, 5R55E, A4LD and 4R44E transmissions. This pan uses a 4WD filter.
Volume: 3 quarts over stock
Cost $220.00 Qty

#56A4LD. We now have an adapter to install a 2.8L type 700R4 transmission on a Ford Ranger, Aerostar or Explorer with a 4L engine. The small bell housing 2.8L 700R4 transmission can be built to V8 specs. This kit will fit 2WD and 4WD with the weaker A4LD transmission. The bellhousing kit comes with a new bellhousing adapter plate, torque converter adapter ring, crank bushing, necessary hardware and instructions. The transfer case kit comes with a new output shaft for the transmission and the transfer case adapter. Cost, Bellhousing kit $399.00, Transfer case kit $460.0

Bellhousing Kit

Transfer Case Kit

#A4LDPS. A4LD Lock-Up Torque Converter Pressure Switch. This is an automatic engagement solution for an early type A4LD 2 wire lock-up. The pressure switch is installed in the governor portion of the transmission body. When the fluid pressure reaches the switch tolerance the switch closes completing the circuit and energizing the solenoid. We have the oil pressure switches (44, 48, 50 and 52 MPH) in stock. Start saving gas money now. Ford only offered the first version of this transmission for 2.8L powered Rangers and Bronco II's in 1984, and 1985. We sell our heavy duty / performance version of the A4LD transmission. Pressure Switch Instructions, Click Here