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Suspension, Brakes & Chassis Everything related to S550 Mustang suspension, brakes and chassis.


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Old 02-09-2016, 04:21 PM   #1
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Exclamation BMR Tech Tip: Clock those bushings after lowering your S550!

Many of our customers in both the GM and Ford segments of our operation, have ride height issues after lowering their vehicles.

Some very common complaints after lowering vehicles are:

-Car did not drop much in the rear

-Car is sitting lop sided

-Car is making noise now

-Car feels very unstable and floaty

-After lowering the car, some of the bushings have worn out


Many times, it is simply due to not loosening all of the suspension pivot point bolts, and re-torquing them to their specific TA values whent he car is sitting on all (4) wheels/tires - loaded.

The best way to perform this is get the car on a drive on lift, or blocks or drive on ramps. The car needs to be level and sitting on all 4.

Loosen all of the suspension pivot point bolts enough to where there is no load on the nuts.

After ALL of them are loose, go ahead and RE-torque them all to OEM specified values.

These pivot points are as follows:

FRONT: (anywhere there are rubber bushings)
Front Radius Control Arm - inner mount
Front Lower Control Arm - inner mount

REAR: (anywhere there are rubber bushings)
Upper Camber Link - inner and outer mounts
Toe Link Outer Knuckle Bushing
Rear Control Arm Front Inner Mount
Rear Control Arm to Knuckle Mounts


Hope this helps! Happy Modding!

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Old 02-09-2016, 05:15 PM   #2
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This may be a stupid question, but one I do not know the answer to. Should this be done prior to the alignment?
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Old 02-09-2016, 05:59 PM   #3
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It should be done prior to aligning the car, yes.
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Old 02-09-2016, 06:28 PM   #4
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Thanks bro!
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Old 02-09-2016, 07:29 PM   #5
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Kelly to make it the ultimate TIP, please also add the torque values for those bolts.
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Old 02-09-2016, 07:36 PM   #6
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Post for later, nice info.
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Old 02-09-2016, 09:54 PM   #7
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And I just got an alignment yesterday! I'm looking for something to cure the noises I'm hearing when going over speed bumps and other low speed/high travel situations. This may be the cure


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Old 02-10-2016, 11:44 AM   #8
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This should be made a sticky at the top, most people never think about doing any of this!
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Old 02-10-2016, 02:04 PM   #9
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I can attest to this. Once my springs were installed the front dropped great but the rear left side did not drop at all. Almost looked higher. Finally found a great alignment shop and when he loosened the LCA bolts the car just dropped. Now the car rides and drives better then it ever did stock with no dive or squat.
With the suspension parts i have and with the alignment i am very happy with my purchase of BMR parts and will purchase more in the future.

Again thanks Kelly for the suggestion
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Old 02-10-2016, 02:45 PM   #10
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Not to mention this unintentional preload is bad on all those rubber parts.

Edit: All four corners of my brand new car were not equal on Day 1. Maybe my car was trying to tell me "Wrench on me!", lol.
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Old 02-10-2016, 02:48 PM   #11
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I did all of these things when I did my BMR install and I have not had any issues. Car sits level, no noises and the car drives wonderfully.
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Old 02-10-2016, 02:57 PM   #12
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In for torque values.
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Old 02-16-2016, 06:23 PM   #13
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Anyone know the tq. specs? TIA
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Old 02-16-2016, 08:16 PM   #14
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Quote:
Originally Posted by Brian Z. View Post
Anyone know the tq. specs? TIA

Tighten it until it breaks, then back it off half a turn. Works like magic every time!
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Old 02-16-2016, 09:29 PM   #15
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In my opinion,....this should be a "sticky".
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