[phatkat]

I have a 78 f150 4x4 when i get up to 30 mph I get a vibration I thought it was in the transfercase so i swaped in a 205 for the 203 transfercase. didnt fix so i replaced the radius arm, and track arm bushings didnt fix any ideas on what my next step would be.

[usmc triggerman]

[quote name='phatkat' post='18682' date='Jun 2 2007, 06:43 PM']I have a 78 f150 4x4 when i get up to 30 mph I get a vibration I thought it was in the transfercase so i swaped in a 205 for the 203 transfercase. didnt fix so i replaced the radius arm, and track arm bushings didnt fix any ideas on what my next step would be

This post has been edited by usmc triggerman: 21 June 2007 - 10:17 PM

[usmc triggerman]

usmc triggerman, on Jun 21 2007, 10:14 PM, said:

check your drive shafts my truck did the same thing and come to find out it was the front drive shaft was out of balance hope that helps

[phatkat]

I have replaced the drive shafts did not help I will be replacing the wheel bearings next

[ratgodak47]

Hey dude, don't just throw parts at it...... check the easy stuff first. It could be a tire starting to separate or a broken motor or tranny mount. Is the vibration coming from the drivetrain or the wheels.... borrow a set of tires from a friend and swap out or rotate to see if the vibration moves or goes away. Does the transfer case shifter move around alot during excelleration? Little things can make alot of noise/ vibration.

[phatkat]

i pulled the front driveshaft and pulled the gears in the front hubs the vibration went away that only leaves the differential gears and bearings its time for a front axle rebiuld.

[77 F-250]

jack up the front end and shake the tires, if the trie wiggles then it's your wheel bearing. if the tire wiggles and the knuckle wiggles with it then its you ball joints. if you have tires bigger then 35's theres nothing you cand do. its called the death shakes

[phatkat]

i found the problem it is in the front diff