wage92
1/2 ton status
What is the best way to tell the different. I have a vibration above maybe 20mph and i can tell its in the back. Is the easiest way to tell to just check the tires for balance and if they are good assume its the driveshaft? 
CK5
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Tire out of balance vs driveshaft imbalance?
- Thread starter wage92
- Start date
When you let off the throttle, the vibration should go away or change if it's the driveshaft. If the vibration doesn't change when you let off the throttle, then it is not the driveshaft
wage92
1/2 ton status
i was hoping there was a trick like this to tell. Thanks, i will try this tonight.
Tom A
Registered Member
A driveshaft vibration and a tire imbalance will have very different frequencies. If it's a tire, it will be a shake. If it's the driveshaft, it will be more like a hum.
drivelineman
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At higher speeds above 45 if the rear view mirror get's fuzzy that can be around 45-60 hertz , driveline speed . Tires usually make the hood dance at slower speeds .
y5mgisi
1 ton status
I think i have both...
drivelineman
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What are your angles ? Jess
wage92
1/2 ton status
alright i tried listening while letting off the throttle and such. Its definitely a noise from something spinning out of balance i can tell that, when i let off the throttle the noise keeps the same rhythm but changes pitch sort of. I have a cv driveshaft the the axle yoke end isnt pointed directly at the tcase (its probably 3-4 degrees off) so im wondering if that is what is making my noise.
However, the tires i have i bought used, and they have tons of wheel weights on the rims.
So i think i will work on corrected the driveshaft angle because i know that isnt perfect but i was hoping it would work.
However, the tires i have i bought used, and they have tons of wheel weights on the rims.
So i think i will work on corrected the driveshaft angle because i know that isnt perfect but i was hoping it would work.
If you have another set of wheels tire you can swap with another truck, that's good troubleshooting. If they are bias Swampers, it's a good chance they are to blame.
It's also possible to drive on a 208 with no rear driveshaft. I did it once by cleaning the tailshaft, sliding a plastic cup on there, wrapping it up with lots of electrical tape and then topping off the fluid. However, front driveshafts aren't always perfectly tight or balanced either.
It's also possible to drive on a 208 with no rear driveshaft. I did it once by cleaning the tailshaft, sliding a plastic cup on there, wrapping it up with lots of electrical tape and then topping off the fluid. However, front driveshafts aren't always perfectly tight or balanced either.
wage92
1/2 ton status
they are bias ground hawgs, think that has anything to do with it?
Wait, you were expecting them to run smooth? Sometimes the problem with bias plys is that they just aren't round. You should try lifting one tire at a time and rotating it near some fixed object and measure the roundness. Even with enough weight to be "balanced", an out-of-round tire will still shake you on the road. Out of round is more of a low frequency shaking. If it's like a buzzing, that could be cupping of the tread or it points more to the driveline.
wage92
1/2 ton status
haha well that makes me feel a little better, i would rather have the tires causing it than the driveline.
Its definitely a lower frequency. But anyway its rainy here today so i cant do much, tomorrow im going to measure my driveline angles again and see how far off they really are, i think if they are really off i am going to correct that even if its not the problem. Again thanks for all the help!
Its definitely a lower frequency. But anyway its rainy here today so i cant do much, tomorrow im going to measure my driveline angles again and see how far off they really are, i think if they are really off i am going to correct that even if its not the problem. Again thanks for all the help!
