Manual Transaxle/Transmission

Manual Transmission
The M5013-R4 transmission is a five-speed synchronized unit. The R4 five speed has the following features:
^ An aluminum main case, clutch housing and extension housing.
^ The mainshaft has two tapered roller bearings. Mainshaft end play is controlled by a selective shim located under the bearing cup.
^ The countershaft has two tapered roller bearings. The countershaft end play is controlled by a selective shim located under the bearing cup.
^ Synchronized in all gears.
^ All gears are bevel cut.
^ All gears, including reverse, turn on needle roller bearings.
^ Single-piece shift forks with separate shift fork pads.
The M5013-R4 has five forward speeds and one reverse speed. The gear ratios are as follows:
^ First 3.38:1
^ Second 2.06:1
^ Third 1.30:1
^ Fourth 1.00:1
^ Fifth 0.790:1
^ Reverse 3.70:1

Transmission Identification
All transmissions are identified by the model and serial number. This information is on the transmission identification tag and affixed to the transmission case. Do not remove or destroy the transmission identification tag.

Transmission Internal Components-Disassembled View

Transmission Shift Components - Disassembled View

Transmission Shift Components - Disassembled View

Lubrication

CAUTION: Additives and friction modifiers are not recommended.

These transmissions are designed so that the internal parts operate in an oil bath circulated by the motion of the gears and shafts. All parts are amply lubricated if these procedures are followed:
^ Maintain the correct fluid level by inspecting it regularly.
^ Change the fluid at recommended intervals.
^ Use MERCON Multipurpose Automatic Transmission Fluid XT-2-ODX meeting Ford specification MERCON.
High operating temperatures increase the lubricant's rate of oxidation and shorten its effective life. When the average operating temperature is high, the transmission may require more frequent fluid changes. The following conditions in any combination can cause high operating temperatures:
^ operating consistently at high speeds
^ high ambient temperatures
^ restricted air flow around the transmission
^ operating with high load condition.

Powerflow in Neutral

^ The input shaft (gear) drives the fifth gear, first gear, and second gear on the countershaft. It also drives the reverse idler gear.
^ The reverse idler gear drives the reverse gear on the countershaft.
^ All synchronizers are disengaged (centered).
^ No gears are engaged to the output shaft.
^ The output shaft is not engaged to the input shaft.

Powerflow in 1st Gear

^ The input shaft (gear) drives the fifth gear, first gear, second gear and the first/second synchronizer on the countershaft. It also drives the reverse idler gear.
^ The reverse idler gear drives the reverse gear on the countershaft.
^ The first/second synchronizer hub is splined to the countershaft.
^ When the synchronizer sleeve is shifted forward, the countershaft first gear is engaged to the countershaft through the synchronizer hub.
^ The countershaft reduction gear, which is splined on the countershaft, drives the reduction gear on the output shaft.

Powerflow in 2nd Gear

^ The input shaft (gear) drives the fifth gear, first gear, second gear and the first/second synchronizer on the countershaft. It also drives the reverse idler gear.
^ The reverse idler gear drives the reverse gear on the countershaft.
^ The first/second synchronizer hub is splined to the countershaft.
^ When the synchronizer sleeve is shifted rearward, the countershaft second gear is engaged to the countershaft through the synchronizer hub.
^ The countershaft reduction gear, which is splined on the countershaft, drives the reduction gear on the output shaft.

Powerflow in 3rd Gear

^ The input shaft (gear) drives the fifth gear, first gear and second gear on the countershaft. It also drives the reverse idler gear.
^ The reverse idler gear drives the reverse gear on the countershaft.
^ The third/fourth synchronizer hub is splined to the input shaft.
^ When the synchronizer sleeve is shifted forward, the main third gear is engaged to the input shaft through the synchronizer hub.
^ Main third gear drives the countershaft.
^ The countershaft reduction gear, which is splined on the countershaft, drives the reduction gear on the output shaft.

Powerflow in 4th Gear

^ The input shaft (gear) drives the fifth gear, first gear, second gear and the first/second synchronizer on the countershaft. It also drives the reverse idler gear.
^ The reverse idler gear drives the reverse gear on the countershaft.
^ The third/fourth synchronizer hub is splined to the input shaft.
^ When the synchronizer sleeve is shifted rearward, the input shaft is locked to the output shaft through the synchronizer hub.

Powerflow in 5th Gear

^ The input shaft (gear) drives the fifth gear, first gear, second gear and the fifth/reverse synchronizer on the countershaft. It also drives the reverse idler gear.
^ The reverse idler gear drives the reverse gear on the countershaft.
^ The fifth/reverse synchronizer hub is splined to the countershaft.
^ When the synchronizer sleeve is shifted forward, the fifth gear is engaged to the countershaft through the synchronizer hub.
^ The countershaft reduction gear, which is splined on the countershaft, drives the reduction gear on the output shaft.

Powerflow in Reverse Gear

^ The input shaft (gear) drives the fifth gear, first gear, second gear and the fifth/reverse synchronizer on the countershaft. It also drives the reverse idler gear.
^ The reverse idler gear drives the reverse gear on the countershaft.
^ The fifth/reverse synchronizer hub is splined to the countershaft.When the synchronizer sleeve is shifted rearward, the countershaft reverse gear is engaged to the countershaft through the synchronizer hub.
^ The countershaft reduction gear, which is splined on the countershaft, drives the reduction gear on the output shaft.