Mazda M5OD Manual Transmission (M5R2)

M5OD-R2 Transmission Specs, Ratios, Information

The Mazda M5OD-R2 transmission, often referred simply as the "Mazda R2", is a top loaded overdrive transmission found in various 1988 to 2008 model year F-150 pickups and fullsize Broncos. It is fully synchronized and features a relatively tall 1st gear that some may find undesirable and uncharacteristic of a truck transmission. "R2" refers to the fact that the transmission is the second revision of the Mazda M5OD platform, with the first revision (M5OD-R1) being a much lighter duty transmission found in various Ford Ranger and Mazda B Series applications. The R2 was only used in applications that featured the 300 I-6, 4.2L V-6, 5.0L V-8, and 4.6L V-8 engines - the transmission was not available behind larger engines such as the 351W and 5.4L V-8.

M5OD-R2 Transmission Gear Ratios

1

2

3

4

5

R

3.90 : 1

2.25 : 1

1.49 : 1

1.00 : 1

0.80 : 1

3.39 : 1

 

Mazda M5OD-R2 Transmission Specs

Transmission:

Mazda M5OD-R2 (M5R2, Mazda R2)

Type:

5 speed manual overdrive, toploading

Predecessor:

Tremec T170 series

Applications:

1988 - 1996 Ford F-150/Bronco, 300 I-6 & 302 V-8 only
1997 - 2008 Ford F-150, 4.2L V-6 & 4.6L V-8 only

Case Material:

Aluminum

Synchronized:

Synchronized in all forward gears & reverse

Max Input Torque:

N/A

Weight:

~ 115 lbs

Fluid Type/Spec:

MERCON V ATF (previously MERCON), 3.8 quart fluid capacity (7.6 pints)

Features:

• Hydraulic clutch system featuring a concentric internal slave cylinder (transmission must be removed to replace slave cylinder)

• Trans code "M" on door pillar identification tag

• Integrated bellhousing and shift tower

• Toploading transmission

• Found in some light duty F-250 models (rare)

M

Mazda

5

5 forward speeds

OD

Overdrive

R2

Revision 2; medium duty version of the M5OD transmission platform. Light duty R1 M5OD transmission can be found in various Ford Ranger & Mazda B series applications.