Vibrating, Shaking After Lift

[Miguelon]

Ive had my ICON lift now for about 9 months. I get a strange vibration only when I mash hard on the gas. At no other time does this happen. It feels like it alternates back and forth from passenger to driver. Ive searched this forum and not had any luck finding this specific issue. Anyone else ever experience this issue?

 

[Saker]

Ive had my ICON lift now for about 9 months. I get a strange vibration only when I mash hard on the gas. At no other time does this happen. It feels like it alternates back and forth from passenger to driver. Ive searched this forum and not had any luck finding this specific issue. Anyone else ever experience this issue?

The mashing hard on the gas makes me first say to check motor mount failure.
Other than that maybe drive train or suspension looseness in the rear of the vehicle.

 

[Miguelon]

The mashing hard on the gas makes me first say to check motor mount failure.
Other than that maybe drive train or suspension looseness in the rear of the vehicle.

They did replace the motor last Summer right before I installed the lift. I'm betting that's the culprit. Thanks for the suggestion.

 

[FrenchToasty]

Also check torque on all bolts that were removed/tightened when the lift was done, driving might have loosened something up a hair

 

[Miguelon]

Also check torque on all bolts that were removed/tightened when the lift was done, driving might have loosened something up a hair

For sure on that one! I did the install myself and had never worked on an suspensions before. Went through a period of about 3 weeks after the install that I was constantly pulling over to tighten something I missed here and there. Finally took it into Brave Motorsports here in Houston and had them basically go over the whole install for my own piece of mind.

 

[Miguelon]

Another idea that a mechanic floated by me today was that the lift causes too much stress on the OEM axles. So when I mash on the gas, the front weight is then lifted off of them and the knuckle grinds causing the vibration. He suggested I look into beefier axles.

 

[SATSTRAIL]

Another idea that a mechanic floated by me today was that the lift causes too much stress on the OEM axles. So when I mash on the gas, the front weight is then lifted off of them and the knuckle grinds causing the vibration. He suggested I look into beefier axles.

Knuckle grinds against what??? I find this possibility very unlikely...but maybe im not understanding what your mechanic meant.