suspension

Front Struts - Pair

for 2007 Ram 3500 5.9L I6 Cummins · 4WD

Difficulty

Advanced

Time

3.7 h

Tools

Steps

✓Fact-checked. Built from OLP's spec database, then independently fact-checked line by line with every correction applied. Master-tech sign-off by Chris Hackleman is queued. Cross-check torque values against the factory manual, and stop if anything looks unsafe. How our data is made.

Replace both front struts on a 2007 Ram 3500 4WD with 5.9L Cummins diesel engine, restoring suspension performance and ride quality.

Warnings

⚠️This is a SAFETY-CRITICAL repair. Improperly installed struts can cause loss of vehicle control, tire separation, or suspension collapse resulting in serious injury or death.

⚠️Coil springs are under extreme tension and can cause severe injury or death if released suddenly. ALWAYS use proper spring compressors and follow manufacturer instructions exactly.

⚠️Never work under a vehicle supported only by a jack. Always use properly rated jack stands and wheel chocks.

⚠This is a 3500 heavy-duty truck with significantly heavier suspension components than light-duty vehicles. Ensure all tools and support equipment are rated appropriately.

⚠After strut replacement, a professional wheel alignment is MANDATORY to prevent premature tire wear and ensure safe handling characteristics.

ℹ️If you are uncertain about any step involving spring compression or suspension disassembly, seek professional assistance immediately.

Tools required

Floor jack and jack stands rated for 10,000+ lbsEssential

Torque wrench (0-200 ft-lbs range)Essential

Wheel chocksEssential

Impact wrench or breaker bar

Coil spring compressor toolEssential

21mm socket for lug nutsEssential

18mm wrench/socketEssential

15mm wrench/socketEssential

13mm wrench/socketEssential

Pry bar

Ball joint separator or pickle fork

Wire brush

Penetrating oil

Alignment punch or drift

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Parts

Front strut assemblies (pair) × 2 — Use OEM specification or quality aftermarket for heavy-duty truck
Upper strut mount bearings (if not included with struts) × 2 — Use OEM specification
Strut mounting nuts × 6 — Use OEM specification
Sway bar link (if worn) × 2 — Use OEM specification

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Preparation

Park vehicle on level, solid surface and engage parking brake
Place wheel chocks behind rear wheels
Loosen front wheel lug nuts while vehicle is on ground (do not remove)
Raise front of vehicle and support on jack stands at frame rails, not suspension components
Remove both front wheels completely
Spray all suspension fasteners with penetrating oil and allow to soak for 15-30 minutes
Inspect new strut assemblies to verify they match original equipment dimensions and mounting configuration
If installing bare struts (not complete assemblies), prepare coil spring compressor according to manufacturer instructions

Procedure

1
Disconnect sway bar links
Disconnecting the sway bar end links is generally NOT required to replace the front shock absorbers on this solid-axle truck. If access is needed, the sway bar links connect the sway bar to the front axle; verify fastener sizes on the vehicle before removing.
2
Remove upper strut mounting nuts
Locate the upper shock absorber mount. On this solid-axle truck the shock upper stud passes through a frame bracket and is retained by a nut (typically requiring a wrench to hold the shock stud flats while removing the nut). Remove the upper shock retaining nut. Repeat for passenger side.
⚠The strut assembly is heavy. Ensure it is properly supported before removing the final upper mounting nut.
3
Disconnect lower strut mounting bolts
Locate the lower shock absorber mounting bolt securing the shock to the axle bracket. Support the shock and remove the lower bolt. Remove the shock absorber from the vehicle.
4
Remove strut assembly from vehicle
Carefully lower and maneuver the complete strut assembly out through the wheel well. The assembly is heavy and awkward - use proper lifting technique. Place the removed strut on a stable work surface. Repeat steps 2-4 for the opposite side strut.
5
Disassemble old strut (if reusing springs or installing bare struts)
This step does not apply. The front shock absorbers on this solid-axle truck do not have coil springs mounted on them; a spring compressor is not needed for shock replacement. The separate front coil springs remain in place.emove upper mount, bearing, spring seat, and compressed spring. Keep spring compressed until ready to install on new strut.
⚠️Compressed coil springs store enormous energy. Never place any body part in line with the spring axis. Ensure spring compressor is properly installed and rated for this application.
⚠️Verify spring is fully compressed and loose on the strut before removing upper shaft nut. If spring is still under tension, it can violently release.
6
Transfer components to new strut (if applicable)
This step does not apply to this vehicle. Front shock absorbers are replaced as complete units with no spring transfer required.eated in upper and lower spring seats before fully removing compressor.
⚠Spring must be properly seated in both upper and lower spring seats before releasing compressor. Misalignment can cause spring to pop out violently.
7
Install driver side strut assembly
Lift the new strut assembly (or complete pre-assembled unit) into position through the wheel well. Guide the upper studs through the strut tower holes first, then align the lower strut body with the steering knuckle mounting location. It may be helpful to have an assistant support the assembly from above while you align it from below.
8
Install lower strut mounting bolts
Insert the lower strut mounting bolts through the steering knuckle and strut bracket. If alignment cams or eccentric washers were present, install them in the exact orientation marked during disassembly. Install nuts and tighten finger-tight only at this stage. Do not fully torque until vehicle is at ride height.
9
Install upper strut mounting nuts
Install the upper shock absorber mount nut onto the stud passing through the frame bracket. Torque to the factory service manual specification (verify the correct value for this application before final tightening).
10
Reconnect sway bar links
Install sway bar end links to lower control arms. Install nuts and tighten while holding ball stud with wrench. Ensure ball joint boots are not twisted or damaged during installation.
11
Repeat installation for passenger side
Repeat steps 7 through 10 for the passenger side strut assembly, ensuring all components are installed in the same manner as the driver side.
12
Torque lower strut bolts at ride height
Install wheels and hand-tighten lug nuts. Carefully lower vehicle until suspension is at normal ride height but vehicle is still partially supported by jack stands (wheels just touching ground with partial vehicle weight). Torque the lower shock absorber mounting bolt to the factory service manual specification. NOTE: shock absorbers do not need to be torqued at ride height. Verify the correct torque value from the factory service manual before final tightening.
13
Final tightening and wheel installation
Fully lower vehicle to ground. Torque wheel lug nuts in a star pattern to the manufacturer specification (approximately 145 ft-lbs for the 2007 Ram 3500 — verify against the factory service manual for your specific wheel/dually configuration). Double-check all fasteners are properly tightened. Bounce each corner of vehicle several times to settle suspension.

Reassembly

All fasteners must be torqued to proper specifications using a calibrated torque wrench
Lower strut mounting bolts MUST be torqued at ride height, not with suspension hanging
Verify sway bar links are not binding and move freely through suspension travel
Check that brake hoses and ABS wiring are not stretched, kinked, or rubbing on suspension components

Verification

Test drive vehicle in a safe area at low speed and verify normal handling with no unusual noises, vibrations, or pulling
IMMEDIATELY schedule a professional wheel alignment - this is MANDATORY after strut replacement
After 50-100 miles, re-check torque on all strut mounting fasteners
Inspect for any fluid leaks from strut bodies indicating defective units
Verify even tire contact with road surface and no irregular tire wear patterns after alignment
If any abnormal handling, noises, or vibrations occur, STOP driving and have suspension inspected by a professional immediately

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