Second-Position Cab Mount Insulator for Body-on-Frame SUV

Built to isolate the cabin from the frame, this second-position cab/body mount insulator keeps your SUV quiet, stable, and aligned. It sits between the ladder chassis and the body shell, using a durable elastomer core and a steel sleeve to absorb vibration, road shock, and engine buzz . When healthy, it maintains correct ride height, protects welds and seams, and prevents metal-to-metal contact ️.

Why this part is needed

It reduces NVH, supports cabin weight distribution, and keeps door, hood, and tailgate gaps true. Replacing a tired mount restores comfort, steering precision, and overall chassis harmony.

How it works

A preload bolt compresses bushing halves against cup washers. The inner sleeve guides the bolt, the rubber isolates motion, and controlled flex lets the body move slightly without harsh impact. The result: smoother ride, less cabin shake, and long-lasting frame integrity.

What happens if it’s broken ⚠️

Expect clunks over bumps, extra vibration at idle, wandering feel, uneven panel gaps, and possible body sag. Prolonged failure can stress mounts, crack sealant, and invite corrosion. In severe cases, windshield creaks and steering shudder may appear.

Pro install tips ✅

Replace in pairs on the same axle line, torque with the vehicle on its wheels, and renew rusty bolts/spacers. Recheck torque after a short road test .

Compatibility

• QX80
• QX56