2017 DODGE RAM 3500

Typical onset: 60,000-120,000 mi

Symptoms: Shuddering or vibration during lockup at highway speeds, Slipping between gears under load, Check engine light with P0741 or P0868 codes, Metal debris in transmission fluid

Fix: Torque converter replacement requires full transmission drop, typically 8-12 hours labor. Often find worn clutch material and contaminated fluid that necessitates full fluid flush and filter replacement. If converter failure contaminated internals, you're looking at full rebuild territory.

Estimated cost: $2,800-4,500

Typical onset: 80,000-140,000 mi

Symptoms: Harsh or delayed shifts into overdrive, Transmission stays in lower gear on highway, P0750, P0755, P0760 solenoid codes, Erratic shift patterns under load or towing

Fix: Solenoid pack replacement requires dropping the pan and valve body removal, about 4-6 hours labor. Smart to replace all solenoids at once rather than chasing individual failures. Replace filter and fluid while you're in there.

Estimated cost: $800-1,400

Typical onset: 70,000-150,000 mi

Symptoms: Transmission fluid puddles under truck, often passenger side, Low fluid level warnings, Burnt smell from fluid dripping on exhaust, Overheating transmission temps when towing

Fix: Cooler lines rust through at fittings or get damaged by road debris. Line replacement is 2-3 hours. If the external cooler itself fails (less common), figure 4-5 hours due to radiator removal on some configurations. Flush system and refill with 13+ quarts of ATF+4.

Estimated cost: $400-1,200

Typical onset: 50,000-100,000 mi

Symptoms: Hard starting after sitting overnight, Loss of power or surging under acceleration, Check engine light with P0087 low fuel pressure code, Visible fuel seepage at filter housing

Fix: The plastic fuel filter housing develops cracks or o-ring failures, letting air into the system. Replacement with updated metal housing takes 1-2 hours including priming and bleeding. Some techs just replace the whole assembly rather than chasing failed seals.

Estimated cost: $300-600

Typical onset: 60,000-120,000 mi

Symptoms: Clunking when shifting from park to drive, Vibration at idle in gear, Excessive driveline movement when accelerating hard, Visible cracking or separation in rubber mount

Fix: The transmission mount absorbs huge torque from the Cummins and wears faster than gas trucks. Replacement is straightforward with a transmission jack, about 1.5-2 hours labor. Often done alongside crossmember inspection.

Estimated cost: $250-450

Typical onset: 80,000-150,000 mi

Symptoms: Gear indicator doesn't match actual gear position, Difficulty shifting into park, Truck rolls in park or won't start in park/neutral, Loose or sloppy shifter feel

Fix: Plastic bushings at the transmission end wear out and the cable can slip out of adjustment. Cable replacement or re-bushing takes 2-3 hours including proper adjustment procedure. Critical to set neutral safety switch correctly afterward.

Estimated cost: $300-550