car shakes

[tallpaul]

My car shakes at highway speeds. When the guy balanced my tires he said that the differential was shifted out of place. I was wondering how I might fix some of this vibrating. Will balancing the driveshaft help?

[fastblackmerc]

My car shakes at highway speeds. When the guy balanced my tires he said that the differential was shifted out of place. I was wondering how I might fix some of this vibrating. Will balancing the driveshaft help?

Not if the diff is shifted.

Check the upper and lower control arms to see if the are bent. Was the car in a accident in the rear?

[ImpalaSlayer]

Not if the diff is shifted.

Check the upper and lower control arms to see if the are bent.did you run over a small pebble?

fixed :lol:

[SpartaPerformance]

What speed does it shake? What shakes the steering wheel or the entire car? Is it when you're driving or stopping?

[tallpaul]

It shakes around 60 mph while I am driving and it's the steering wheel.


What speed does it shake? What shakes the steering wheel or the entire car? Is it when you're driving or stopping?

[tallpaul]

Personally I don't know if it has been in an accident. Guess I should get a carfax and see if it has been. The guy at Colony Tire said that it must have been in one.


Not if the diff is shifted.

Check the upper and lower control arms to see if they are bent. Was the car in a accident in the rear?

[musclemerc]

If the CA/s are indeed bent stop driving the car. The vibration your feeling is from the pinion angle being out of center. This will eventually lead to tailshaft failure on the transmission.

[DEFYANT]

Shakes? I know Shakes!

[SpartaPerformance]

If it shakes at highway speeds and its in the steering wheel then you either have an unbalanced tire or a bad front end component such as a tie rod for example.

[fastblackmerc]

It shakes around 60 mph while I am driving and it's the steering wheel.

Then it's in the front end.

Tire balance

Bent rim

Belts in the tire have shifted

Other defect in the tire(s)

[tallpaul]

Well I guess this may give me a legitimate reason to buy aftermarket control arms. I know you said that you had some factory ones for sale but if I am going to go through the trouble of taking them off then I might as well put on some better ones.


If the CA/s are indeed bent stop driving the car. The vibration your feeling is from the pinion angle being out of center. This will eventually lead to tailshaft failure on the transmission.

[tallpaul]

Does anybody sell aftermarket tie rods or other front end components for our cars? If I do have to replace them then I might as well put some better parts on.


If it shakes at highway speeds and its in the steering wheel then you either have an unbalanced tire or a bad front end component such as a tie rod for example.

[fastblackmerc]

Does anybody sell aftermarket tie rods or other front end components for our cars? If I do have to replace them then I might as well put some better parts on.

No, haven't seen any.

[thathotrodlincn]

You said the magic words "Colony Tire". My experiences with Colony Tire here on the Outer Banks has been far less than satisfactory. Take the car to someome that has the Hunter Road Force balancing system. This will eliminate or identify the tires and/or wheels as the source of the vibration

[tallpaul]

Thanks for the tip. I knew that getting the wheels balanced should eliminate the shaking but he told me that the car had been hit and that I would never be able to get it alligned.

[fastblackmerc]

You said the magic words "Colony Tire". My experiences with Colony Tire here on the Outer Banks has been far less than satisfactory. Take the car to someome that has the Hunter Road Force balancing system. This will eliminate or identify the tires and/or wheels as the source of the vibration


Thanks for the tip. I knew that getting the wheels balanced should eliminate the shaking but he told me that the car had been hit and that I would never be able to get it alligned.

You guys coming to Marauderville VIII?

How about the Southeast Mustang / All Ford Show in Wilmington?

If your ever in the Raleigh / Cary area I can give you the number of the guy that does my tires and alignment.

If the MM was in an accident and if the frame was straightened correctly there should be no reason the alignment can't be set properly.

[babbage]

You said the magic words "Colony Tire". My experiences with Colony Tire here on the Outer Banks has been far less than satisfactory. Take the car to someome that has the Hunter Road Force balancing system. This will eliminate or identify the tires and/or wheels as the source of the vibration


ding ding ding. +1 ^1 Tire jockey says your car was in a accident? Did you ask his HOW he knows this? :shake: Most of these people are idiots... If your rear axle was off it would likely do it at all speeds.

You probably need new tires (road force balanced) and a carfixer align.
The see-saw at 60 is (very) common issue with Marauders.

[tallpaul]

I plan on coming to Marauderville VIII. Didn't know about the wilmington event. I am only in the triangle area when I go to the VA in Durham. How do you go about straightening the frame? Who can do this?


You guys coming to Marauderville VIII?

How about the Southeast Mustang / All Ford Show in Wilmington?

If your ever in the Raleigh / Cary area I can give you the number of the guy that does my tires and alignment.

If the MM was in an accident and if the frame was straightened correctly there should be no reason the alignment can't be set properly.

[tallpaul]

I'm not too sure what you mean by see saw shake. You can take both hands off of the steering wheel and see the thing shake like hell. Maybe that is what you mean afterall.


ding ding ding. +1 ^1 Tire jockey says your car was in a accident? Did you ask his HOW he knows this? :shake: Most of these people are idiots... If your rear axle was off it would likely do it at all speeds.

You probably need new tires (road force balanced) and a carfixer align.
The see-saw at 60 is (very) common issue with Marauders.

[musclemerc]

You should take your MM to the dealer so you can get this answered correctly. Rear end? Front end? Now the frame?

[SpartaPerformance]

I still say you should have the balance on your tires and front end rechecked especially being that a couple of members here seem to know the place you took your car for service.

[tallpaul]

Will do. Thanks for the help.

[Bluerauder]

My car shakes at highway speeds.


If it doesn't shake until 60 MPH, I suspect front end tire balancing is the culprit. Possible alignment issues too if you have experience uneven wear across the fronts. What does the tire wear look like on your old fronts? How are the inside edges worn?

Get a "Road Force" balance with the Hunter GSP 9700 >>>>> http://www.gsp9700.com/index.cfm

You can find a location near you on the main page of the site ^^^^.

[Marauderjack]

If you have the OEM BFG's up front you are wasting time and money......ALL of mine had the steering wheel shimmy!! :mad2::argue:

Get some good tires and you will be fine!!:beer:

[Bluerauder]

If you have the OEM BFG's up front you are wasting time and money......ALL of mine had the steering wheel shimmy!! :mad2::argue:

My experience has been exactly the opposite. I have only had OEM BFGs up front and have never had steering wheel shimmy at any speed, never had inside tire wear on thef fronts, or any of the other tire issues related to alignment or balance. Maybe I am just lucky.

[jvillerauder]

my car does the shake too and only at speeds greater than 60 mph. ive had different tires other than bfg and it still did it. it shakes in a rhythm that increases in frequency as the speed increases. ive had new driver side control arm, knuckle, tie rods and bearings. as far as passengr side no work has been done to that side yet.

[fastblackmerc]

my car does the shake too and only at speeds greater than 60 mph. ive had different tires other than bfg and it still did it. it shakes in a rhythm that increases in frequency as the speed increases. ive had new driver side control arm, knuckle, tie rods and bearings. as far as passengr side no work has been done to that side yet.

Get the tires road force balanced first.

What is Road Force Measurement?
Courtesy of Hunter Engineering
Road Force Measurement

Road Force Measurement? is new to the automotive service industry. This new measurement identifies tire and wheel uniformity, which has been measured for years in assembly plants and manufacturing facilities. Road Force can be used to solve uniformity related tire and wheel vibrations. Tire/wheel assembly uniformity can only be measured under load.

The load roller on the GSP9700 performs a computer simulated "road test". It measures the tire/wheel assembly to determine how "round" the assembly is when rolling under a load. If a tire were not exposed to the road surface, then balance would be more than sufficient. However, not all tires roll round under a load. For example, an egg-shaped tire/wheel assembly can be balanced about its axis, but an egg-shaped tire-wheel loaded against a surface would not give a smooth ride.

To understand the effects of radial force variation on vibration, a model of a tire can be used. The sidewall and footprint can be understood as a collection of springs between the rim and the tire contact patch. If the "springs" are not of uniform stiffness, a varied force is exerted on the axle and causes it to move up and down as the tire rotates and flexes. This movement creates a vibration in the vehicle unrelated to balance.

The GSP9700 load roller applies a force of up to 1400 pounds against the rotating tire/wheel assembly as it performs the Road Force Measurement?. The GSP9700 measures loaded radial runout of the tire/wheel assembly within 0.002". It plots data points as the component is rotated and calculates the radial first harmonic of the tire/wheel assembly and the first harmonic of wheel runout. The peak-to-peak value (Total Indicated Runout) and second, third and fourth harmonics of Road Force are also calculated and used for diagnostics. These measurements are all displayed on other screens.

[thathotrodlincn]

Consider taking car to a dealer that has a MTS 4000, or 4001 noise, vibration, harshness (NVH) analyzer. this will ideryify the frequency of the vibration. From that you will be able to tell if it is a wheel/tire problem, driveshaft, belt driven item, fundamental engine speed, or whatever. Then you will not be stumbling around in the dark as much. Good luck!!!