The vibration is not normal.

Need more info on when it is occuring.

I have to look at my tack to see if the engine is running at idle if I have the stereo cranked, I might be old but I still like my Rock and Roll on the loud side.

 

im sure the rims are part of it, and the bad joints and the rusted shocks. the joints and shocks are still yet to be replaced after the Hurricane Ike soaking it took in bridge city.

 

Does it vibrate just sitting still WITHOUT the vehicle moving?? Does it change when revving the engine-- or just WHEN it's moving?? All of what you mentioned--WHEN MOVING-- U-Joints Wheels/Tires and carrier bearing will shake your fillings out at speed. Fix those soon or else it could cause MORE problems like pinion seal/output seal leaks and bearing issues. Or heaven forbid a driveline failure at speed!! That will tear up more than you want to know!! Can you borrow another set of wheels/tires from a buddy?? That may tell you alot. If nothing else at least get the old grease gun out and squirt the zerk fittings. It won't fix it but may slow any further wear till you can fix it properly Clean grease it will force out most of the dirt/rust/gunk and for a short time dampen some movement. Is it 2wd or 4wd and lifted or stock??

 

stock 2x its loaded down w/ grease now. i can get it up to 65ish with no real problem other than vibration, when you approach 70 you cant see the road straight. the only other truck that i know of that is even close to mine is a 92/94 dually down the road.

 

Where do you feel it through the steering wheel or seat?? Is it side to side like death wobble?? Or kind of all around?? Up and down and I would suspect tires. If it's higher frequency it's probably the driveline parts mentioned before if it's lower frequency it's tires. I kind of think it's both. Also if the tires are out of round real bad and you have weak or blown shocks it'll hop and shake. How about driving at 70 and have a buddy in another vehicle watch??? I had a Jeep with an out of round tire that did that. It vibrated steady to 60 and shook up and down like crazy at 65-70. My buddy followed next to me and said the RF tire was getting slightly off the ground. I bought some Goodyears and it drove smooth as glass (for a Jeep) up to redline (around 80 with the low gears). I drove an old F350 Tow truck that had worn out everything and it would Death Wobble to where you had to pull over. I had a close call hauling a Cadillac, and refused to drive it until it was fixed.

 

no one certain place, just in general vibration. like i said in earlier post, the shifter has a horrible rattle, but that is because its one of those clamp on from the parts house, they last about 2-3 weeks before they are rattled to the point of breaking. if kept under 65 its only noticable through the shifter and a small amount of overall vibin about 70 its hard to see the road it shakes so bad. gonna make another check of the radar and if not gonna rain soon, gonna try to take it over to parents house so i have a big vice to press with.

 

ok, got the 3 joints and the carrier bearing changed, its better but its still there. if i can figure out how to do a video somewhere i can show ya somewhat how the vibin is doing...

 

Check tire runout. Do you have a different set you can borrow?? Did the driveshaft look ok? (not dented and no missing balance weights). Do the top and bottom u-joint angles match?? They need to and if they don't the pinion angle will need to be shimmed between the springs and mounting pads, taking into consideration that the pinion will lift a little under power and at speed. Swap tires first though.

 

Imbalanced tires and drive shaft will cause vibration. What you are describing is classic balance issues in the running gear.

A simple way to check for just how bad the tires and rims are is to raise the rear wheels off the ground and run the truck up to about 60 MPH indicated speed. Take the usual precautions like blocking the wheels and be aware that tires can throw stones that are stuck in the treads.

If the rear tires don't bounce, take the front ones and swap them to the rear.

Now is also a good time to check for tires being out of round as well as not balanced. Might as well also look underneath to see if the driveshaft is wobbling at all. Turning at idle speed is all you need for those inspections.

 

You do have the complete drive line timed (UJ's aligned) correctly?

-Enjoy
fh : )_~

 

is there a way to check alignment?

 

i know i have 2 tires that they could not balance when i got the new set

 

There you have it. When you replace those tires it'll probably go away. If not, refer to previous response and trouble shoot step by step.

 

tires have 9000 miles on them

 

I think you said you had a couple of rims that were bad. Thats what I would look onto replacing.

I also think that it will be easier to make that desicion if you can actually see how they run in the air.