Gearbox Ford 4R70W

The Ford 4R70W 4-speed automatic transmission was produced in the United States from 1992 to 2005 and was installed in many high-performance SUVs and large rear-wheel-drive sedans. This transmission is the successor to the well-known AOD transmission and has been replaced by the 4R75W.

Specifications

Type	automatic transmission
Number of gears	4
Type of drive	rear / all wheel
Engine volume, l	up to 5.4
Torque output, Nm	up to 700
Recommended oil	ATF Mercon V
Oil capacity, liter	12.8
Replacing the oil	every 55 000 km
Replacing the filter	every 55 000 km
Gearbox lifespan, km	~250 000 km

Gear ratios Ford 4R70W

Using the example of a 1999 Lincoln Town Car with a 4.6 liter engine:

Main	3.27
1st	2.84
2nd	1.55
3rd	1.00
4th	0.70
Reverse	2.32

Using

The transmission was installed on:

• Ford Crown Victoria 1 (EN53) in 1994 – 1997; Crown Victoria 2 (EN114) in 1997 – 2005;
• Ford Expedition 1 (UN93) in 1996 – 2002; Expedition 2 (U222) in 2002 – 2004;
• Ford Explorer 2 (U105) in 1995 – 2001;
• Ford E-Series 4 (VN127) in 1993 – 2004;
• Ford F-Series 9 in 1993 – 1997; F-Series 10 (PN96) in 1995 – 2004; F-Series 11 (P221) in 2003 – 2005;
• Ford Mustang 4 (SN95) in 1995 – 2004;
• Ford Thunderbird 10 (MN12) in 1993 – 1997;
• Lincoln Town Car 2 (FN36) in 1994 – 1997; Town Car 3 (FN145) in 1997 – 2005;
• Lincoln Mark VIII in 1992 – 1998;
• Mercury Cougar 7 (MN12) in 1993 – 1997;
• Mercury Grand Marquis 2 (EN53) in 1994 – 1997; Grand Marquis 3 (EN114) in 1997 – 2002; Grand Marquis 4 (EN114) in 2002 – 2005;
• Mercury Marauder 3 (EN114) in 2002 – 2003;
• Mercury Mountaineer 1 (U105) in 1996 – 2001;
• MG ZT in 2003 – 2005;
• Rover 75 I (RJ) in 2004 – 2005.

Disadvantages of the Ford 4R70 gearbox

• The main problem with automatic transmissions is the rapid wear of seals, rings, and other gaskets;
• Then oil pressure drops, which contributes to accelerated wear of the clutches;
• The transmission is also susceptible to overheating and, conversely, driving in extreme cold without warming up.