Front End Vibration upon acceleration at 40-50 & Hums

2005 JEEP LIBERTY
130,000 MILES • 3.7L • 4WD • AUTOMATIC
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GENERAL LEE 0166
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I am a mechanic, Which I have replaced these items already on this vehicle with brand new parts.
1.) Front carriage bearing in the 4 wheel drive, left and right.
2.) Front drivers and passenger side front wheel bearings.
3.) Front upper ball joint on driver side
4.) Drivers side lower ball joints
5.) Front brake rotors passenger and drivers side
6.) new front brake pads
7.) rebuilt the front drive shaft on both ends
8.) Drivers and Passengers side CV Shafts replaced
9.) Passenger Lower ball joint
10.) Drivers side upper ball joint
11.) Rear Brake rotors both side
12.) Rear Axle bearings and seals
13.) Replaced the Synthetic fluid in rear end
14.) Replaced rear driveshaft universal joint
15.) replace output shaft bearing on transfer case
All these parts are new in the last 1 week..
I need results.. Could it be a transmission or engine mount?
Nov 14, 2015 at 7:44 PM
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HMAC300
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cold be either you'll have to test for broken motor mounts by brake torqueing.
Nov 15, 2015 at 8:44 AM