SOME 2015-2017 MUSTANG VEHICLES MAY EXPERIENCE A DRIVELINE VIBRATION DIRECTLY RELATED TO A VEHICLE SPEED OF 70-100KMH (50-70MPH) AND IS PERCEIVED AS A TREMOR IN THE FLOOR PAN, SEAT TRACK, OR STEERING WHEEL AND MAY BE HEARD AS A RUMBLE, HUM, OR BOOM. BEFORE REPLACEMENT OF ANY PARTS BE SURE TO VERIFY THE CONCERN WITH A ROAD TEST AND VISUALLY INSPECT THE DRIVESHAFT FOR DAMAGE, UNDERCOATING, INCORRECTLY SEATED UNIVERSAL JOINTS, ROTATE THE DRIVESHAFT BY HAND TO FEEL FOR ANY BINDING OR END PLAY IN THE UNIVERSAL JOINTS. IF NO CONCERN IS FOUND CHECK AND CORRECT ANY TIRE BALANCE ISSUES USING LOADED HUNTER ROAD FORCEù METHOD. IF A CONCERN IS STILL PRESENT BALANCE THE DRIVESHAFT USING THE MASTERTECHù SERIES MTS 4000 DRIVELINE BALANCE AND NVH ANALYZER. REFER TO WORKSHOP MANUAL SECTIONS 100-04,200-04A AND 205-01. USE LABOR OPERATION 1007D AND ANY APPROPRIATE COMBINATIONS.
