What have you done to your mustang today?

[K_Brogoitti]

Installed my Roush Drag Pak UCA. Getting a vibration/humming noise at 100+ MPH now. Any ideas?

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[Greg Hazlett]

Did you change out the mount as well?

 

[K_Brogoitti]

Did you change out the mount as well?

The mount to the body? No, the bushing on the axle is stock too.

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[blk12gt]

Installed my Roush Drag Pak UCA. Getting a vibration/humming noise at 100+ MPH now. Any ideas?

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Go slower than 100 mph lol

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[lethe]

Installed my Roush Drag Pak UCA. Getting a vibration/humming noise at 100+ MPH now. Any ideas?

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Go slower than 100 mph lol

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Sounds logical.

 

[K_Brogoitti]

Go slower than 100 mph lol

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LOL that ain't no fun tho.

But what do I need to do or replace? I installed 4.10's recently and Strange Adjustables. But that's as much as I've done to the rear. And it didn't do this before

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[skwerl]

Yes it did, but you were insulated from it. Now you have a more direct connection to the differential and it telescopes everything straight into the passenger cabin.

 

[K_Brogoitti]

So what you're saying there is no way around the issue? How about adjusting pinion angle? Balancing the driveshaft? New bearings in the diff?

 

[garner]

Took it to the drag strip. Only got a 12.8@111

 

[lethe]

LOL that ain't no fun tho.

But what do I need to do or replace? I installed 4.10's recently and Strange Adjustables. But that's as much as I've done to the rear. And it didn't do this before

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Have you checked pinion angle?

 

[GallopingFord]

I think that UCA is fixed.

 

[K_Brogoitti]

Have you checked pinion angle?

Not yet, I will do that tomorrow morning. If I find an issue with Pinion Angle is there a way to tweak it without an adjustable UCA? How would you load the suspension in the rear to properly check?

 

[AnotherS197GT]

So what you're saying there is no way around the issue? How about adjusting pinion angle? Balancing the driveshaft? New bearings in the diff?

Put the car on ramps to check the pinion angle or take it somewhere with a drive on lift. You can also try clocking the driveshaft (if you have a one piece) to see if that gets rid of the vibe.

Not yet, I will do that tomorrow morning. If I find an issue with Pinion Angle is there a way to tweak it without an adjustable UCA? How would you load the suspension in the rear to properly check?

You can adjust with adjustable lowers. I'd recommend getting an adjustable upper though. 1 adjustment point is easier than 2.

 

[BLKBULLITT]

Moved it from its slumber spot to the driveway. Then took it for a small rip down the road

 

[Jeremy@AirLift]

Plowed the driveway

 

[FIVE-OH]

Plowed the driveway

LOL, nice!

 

[lethe]

Replaced a couple radiator hoses and finished reinstalling the shaker subs.

 

[Greg Hazlett]

Started it up, got it off the stands and drove it around the block for the first time in a month! Have to have the torque converter pulled to reflash from a 2C to a 5C for the NA CJ intake setup.

 

[bradleyem]

Been getting random ABS light and Check Traction Control messages. So either I have something going on with the ABS (sensor going bad) or its time for another fucking alternator :-(

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[06Rousher]