Rear end sway problem after installing halfshafts.

[Adaraas]

So this has been going on with my car for a while. I'll get a really bad swaying problem when turning and on the highway. The car will literally throw you around running about 85.

It all started happening after I put in the halfshafts. I've had 3 different sets of tires on the car thinking I had bad tires but obviously all three sets won't be the same.

I'm just curious what people think I could do to fix this, and if anyone else has had the issue.

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[Road Dog]

What have you done since installing the half shafts? Any checks, had it up on a lift, verification of torque on bolts. Alignment?

 

[Adaraas]

What have you done since installing the half shafts? Any checks, had it up on a lift, verification of torque on bolts. Alignment?

Just got it aligned the other day. Was fine. I haven't had it on a lift. Checked all the bolts on jackstands though, none were loose.

I'm gonna take the control arms back apart and redo everything soon, so maybe that'll fix it.

 

[Mikeg4572]

I had the same exact problem. It was the lower control arm. Even though it felt tight it was not tight enough. I was surprised what a couple mm's could do on the road.

 

[Adaraas]

I had the same exact problem. It was the lower control arm. Even though it felt tight it was not tight enough. I was surprised what a couple mm's could do on the road.

What did you torque the bolts down to?

 

[IvanCRF]

Did you clock the suspension?

 

[Adaraas]

Did you clock the suspension?

Now that I think about it I didn't even touch anything to do with the shock. Just took the spindle off so I'd have no reason to touch the suspension so no I didn't.

 

[Road Dog]

Clocking the suspension refers to torquing the bolts on the rotating suspension bushing items while the car's weight is on the wheels. If you don't "clock" them but instead tighten them while the suspension is relaxed, the bushings are twisted when the weight of the car is applied. Driving in this condition has adverse handling results, and of course isn't to cool for the life of the bushings either.

To do it you either need to be on a lift or on ramps. (EASY WAY)

 

[Adaraas]

Clocking the suspension refers to torquing the bolts on the rotating suspension bushing items while the car's weight is on the wheels. If you don't "clock" them but instead tighten them while the suspension is relaxed, the bushings are twisted when the weight of the car is applied. Driving in this condition has adverse handling results, and of course isn't to cool for the life of the bushings either.

To do it you either need to be on a lift or on ramps. (EASY WAY)

Ah.. well I'll do that then.

 

[alrodri8]

Did clocking the bushings help? I'm having the same issue also. I installed halfshafts, did alignment and also got new tires done all at the same time. Wondering if its the clocking bushings thing

 

[alrodri8]

I get sway back and forth in the rear only during hard acceleration at high speeds. When Im cruising it does not happen.

 

[Adaraas]

I haven't clocked my bushing yet, but my issues seems to have gone away. Haven't changed anything.

It occasionally happens, but its for like 2 seconds. Felt it maybe 3 times in the last month.

 

[alrodri8]

I am going to clock my bushings these evening. Ill report in on the results this weekend to see if that corrects the issue. It's weird for me because it does not sway when cruising, just when I do a hard highway pull or do a quarter mile race after 60ish MPH.

 

[wildcatgoal]

Sorry... this makes no sense. What on earth does half shafts have to do with sway? Even clocking bushings, which is arguably necessary after lowing the car, not replacing a part with just a stronger version. I would go back and figure out what I disconnected to install these things and check all of those bits and pieces. If the half shafts are not seated right by the pumpkin or wheel, you could have some issues like this I guess, but I'd assume you got those puppies in there and locked in properly.

 

[alrodri8]

Sorry... this makes no sense. What on earth does half shafts have to do with sway? Even clocking bushings, which is arguably necessary after lowing the car, not replacing a part with just a stronger version. I would go back and figure out what I disconnected to install these things and check all of those bits and pieces. If the half shafts are not seated right by the pumpkin or wheel, you could have some issues like this I guess, but I'd assume you got those puppies in there and locked in properly.

Exactly, I've never come across this issue, I've installed the halfshafts and torqued everything down appropriately but not as the car was seated on all four wheels. I got the car re-aligned and still have a weird rear sway during hard acceleration. I checked the halfshaft seating on the hub and the differential and it seems appropriate. I'm leaning towards a bolt being loose or not torqued down properly during the alignment procedure. Going to get under the car and clock bushings and torque everything once again hoping it solves the issue.

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