Driveshaft weights

[Jclayc]

So, I've had a low speed driveline vibration for a bit, have taken it to the dealer and explained and they say they can't replicate the issue. Just had 4x4 service done and had them check again and still nothing. No metal shavings in the diff and said the wheels have balanced out. Well, next day I decide to crawl underneath it and take a peek and first thing I see is a weight missing off the rear of the driveshaft to the rear axle.

2 questions

1. Will the weight missing make it that noticeable? My wife said to me last night "I felt that and I though you just drove over grooved pavement."

2. How much weight goes on the driveshaft to balance it or am I just SOL and need it balanced at a driveshaft shop.

Still under warranty but really don't want to take it back to the dealer, it took them 3 days to do my 4x4 service.

Any input/experiences welcomed.

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[Minty JL]

If a driveshaft is balanced correctly, weight is not an issue; whether steel, aluminum or carbon fiber; just like your wheels and tires.

YES, the weights on a driveshaft make a difference; if missing you WILL have driveline vibration. The weight on the driveshaft is dependent on the balancing process, again like have your wheels/tires done....not a cookie cutter answer/solution

The tech should be able to observe if the weights on the driveshaft are missing. If they're competent they would recommend having the driveshaft rebalanced OR replaced.

 

[Jclayc]

If a driveshaft is balanced correctly, weight is not an issue; whether steel, aluminum or carbon fiber; just like your wheels and tires.

YES, the weights on a driveshaft make a difference; if missing you WILL have driveline vibration. The weight on the driveshaft is dependent on the balancing process, again like have your wheels/tires done....not a cookie cutter answer/solution

The tech should be able to observe if the weights on the driveshaft are missing. If they're competent they would recommend having the driveshaft rebalanced OR replaced.

Yeah, I think that is my problem, it was obvious to me but I think since it's still under warranty, they don't want to do the work.

I may run it back up there and show them, see if I can get them to do what's right instead of telling me "we can't replicate it."

Thanks!

 

[Minty JL]

Yeah, I think that is my problem, it was obvious to me but I think since it's still under warranty, they don't want to do the work.

I may run it back up there and show them, see if I can get them to do what's right instead of telling me "we can't replicate it."

Thanks!

Yeah man, down fold under their bullshit.......hold them accountable. Get what you paid for

 

[BearFootSam]

You'll want to get that sorted. Driveshaft vibration is not going to do favors for the longevity of the bearings on either end.

 

[Minty JL]

You'll want to get that sorted. Driveshaft vibration is not going to do favors for the longevity of the bearings on either end.

Great point

 

[Kevin_D]

You'll want to get that sorted. Driveshaft vibration is not going to do favors for the longevity of the bearings on either end.

...or the seals.

Kevin

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