45 mph vibration

[Rowdysr]

Help! Front end vibration that increases upon acceleration. I changed the harmonic balancer and motor mounts. Any suggestions?

 

[Can Can]

Front U-joint? CV joint? Loose bearings? Does it feel like it's engine or suspension related? It could be something as simple as a loose accessory bracket, too. It could also be a bad tire.......Do you have any more info?

 

[Rowdysr]

changed the u-joints - new power steering pump and pulley. everything is tight. No visual problem.

 

[Thunder]

Do you have automatic hubs? I had a vibration from the front of my 89. Also had clicks and clunks. Got rid of the auto hubs. Put in manuals. And presto chango no more vibration or noise. Seems I had one hub that would engage and disengage whenever it felt like it.

 

[EDGE]

You might as well just sell it to someone like me.I need a good parts blazer!

 

[Cavalry]

Check the balance on your tires.
Luke

 

[FLWIV440]

IF THE VIBRATION IS ON ACCEL. ONLY YOU MIGHT WANT TO CHECK TO SEE IF YOU ARE MISSING TEETH ON YOUR REAR DIFFERENTIAL. AFTER CHECKING YOUR U-JOINTS. HAD THE SAME PROBLEM ON AN 85. tire balance really has nothing to do with it . tire balance is mostly for speeds over 35 mph.

 

[riz]

<font color=purple>I had a 79 Chevy pickup once that vibrated bad at higher speeds, I found out it was a front seal that was bad for quite some time so crud was getting in there and my short shaft in the axle had a big worn groove in it. I replaced it along with new bearings, races and seals and I could fly without vibration ever again!</font color=purple>

<font color=purple>L8r,

.Riz.<font color=purple>

 

[Rowdysr]

Thanks for all the info!