transmission

Transmission Mount

for 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD

Difficulty

Moderate

Time

1.6 h

Tools

Steps

This procedure covers the removal and replacement of the transmission mount on a 2014 Ram 2500 with the 6.7L Cummins diesel engine and 4WD.

Warnings

⚠️Ensure vehicle is securely supported on jack stands before working underneath. Never rely solely on a floor jack.

⚠️The transmission must be properly supported before removing mount bolts to prevent sudden dropping or shifting.

⚠Transmission and exhaust components may be hot if vehicle was recently operated. Allow adequate cooling time.

⚠Inspect all transmission mounts during this repair. Failed mounts can cause driveline vibration and damage other components.

Tools required

Transmission jack or engine support fixtureEssential

Floor jack and jack standsEssential

Torque wrench (10-100 Nm range)Essential

Socket set (metric)Essential

Ratchet and extensionsEssential

Pry bar

Wire brush

Penetrating oil

Parts

Transmission mount × 1 — Use OEM specification
Transmission mount hardware kit (if corroded) × 1 — Use OEM specification

Preparation

Park vehicle on level surface and engage parking brake
Chock rear wheels to prevent vehicle movement
Raise front of vehicle and support securely on jack stands at frame rails
Remove front skid plate if equipped to improve access
Spray penetrating oil on transmission mount bolts and allow to soak if hardware shows corrosion

Procedure

1
Support transmission
Position transmission jack under transmission oil pan with a wood block to distribute load. Raise jack until it just contacts transmission but does not lift it. Ensure transmission is stable and secure before proceeding.
⚠️Use a wood block between jack and pan to prevent pan damage. Ensure jack is centered and stable to prevent transmission from shifting.
2
Remove transmission mount to crossmember bolts
Locate the transmission mount bolts securing the mount to the crossmember. Remove the mounting bolts using appropriate socket. There are typically two or more bolts securing the mount to the crossmember from above.
Torque spec
Mounting Bolts82 Nm (61 lb-ft)
3
Remove transmission mount to transmission bolts
Remove the bolts securing the transmission mount bracket to the transmission case. These bolts thread into the transmission housing. Support the mount as you remove the final bolt to prevent it from falling.
Torque spec
Mounting Bolts82 Nm (61 lb-ft)
4
Lower transmission slightly if needed
If access is restricted, carefully lower the transmission jack 1-2 inches to create clearance for mount removal. Monitor all surrounding components including exhaust, wiring, and cooler lines to ensure nothing binds or stretches.
5
Remove transmission mount
Remove the transmission mount assembly from the vehicle. It may require light prying or wiggling to separate from the crossmember or transmission bracket. Inspect the removed mount for cracks, separation, or fluid contamination.
6
Inspect and clean mounting surfaces
Inspect crossmember and transmission mounting surfaces for damage, cracks, or corrosion. Wire brush all mounting surfaces to remove rust and debris. Check that all bolt holes are clean and threads are undamaged. Inspect crossmember for cracks or distortion.
7
Position new transmission mount
Position the new transmission mount onto the crossmember. Align mounting holes carefully. If the mount has an orientation indicator or marking, ensure it is positioned correctly per manufacturer specifications.
8
Install transmission mount to crossmember bolts
Install the transmission mount to crossmember bolts and hand-tighten. Do not fully torque at this stage to allow for alignment adjustment in the next step.
9
Raise transmission and align mount
Use the transmission jack to carefully raise the transmission until the mount bracket aligns with the transmission case mounting holes. Ensure proper alignment before installing bolts. The transmission should sit at normal ride height.
10
Install transmission to mount bolts
Install the bolts securing the transmission mount bracket to the transmission case. Start all bolts by hand to ensure proper thread engagement. Torque these bolts first to specification.
⚠Use the 82.0 Nm (61 lb-ft) specification for transmission-to-mount bracket bolts if they are larger diameter hardware, or 37.0 Nm (27 lb-ft) for smaller bolts. Verify bolt size and compare to original hardware.
Torque spec
Mounting Bolts82 Nm (61 lb-ft)
11
Torque mount to crossmember bolts
With transmission weight now on the mount, torque the mount to crossmember bolts to specification. Ensure mount is seated properly before final torquing.
Torque spec
Mounting Bolts82 Nm (61 lb-ft)
12
Remove transmission jack
Carefully lower and remove the transmission jack. Verify the transmission is fully supported by the new mount and visually inspect that mount is not compressed excessively or sitting at an unusual angle.

Reassembly

Reinstall front skid plate if removed, torquing fasteners to specification
Lower vehicle from jack stands
Remove wheel chocks

Verification

Start engine and observe transmission mount for excessive movement or vibration
With engine running, shift through all transmission gears while stationary and listen for unusual clunking or movement
Test drive vehicle and verify no abnormal vibrations during acceleration, deceleration, or gear changes
Perform visual inspection under vehicle after test drive to confirm all bolts remain tight and mount shows no signs of failure