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Upper Control Arm Angle?

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Old Jul 24, 2023 | 07:32 AM
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KaMiKaZi's Avatar
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Default Upper Control Arm Angle?

Removed both the lower and upper control arms to replace the rubber bushings and ball joints but I didn't mark the angle between the upper mount and the upper control arm before taking it apart.

Searched around and read on other threads to put everything back together a little loose and then tighten up the UCAs when it's at "ride height" or when the suspension is preloaded. Do I have to put the wheels back on and put the car on the ground? Or can I reconnect the upper and lower control arms to the steering knuckle and jack up the lower control arm to put tension on everything? How do I know when I put enough load on everything so that I can tighten?

Front end of the card is on jack stands so I can use my floor jack under the lower control arm.
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Old Jul 24, 2023 | 10:50 AM
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Not sure what car you're using

But the organization I'm a part of usually leaves it loose, get's the car on a drive on lift, then tighten

So it's sitting on its wheels before they tighten
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Old Jul 24, 2023 | 12:18 PM
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Originally Posted by Woodylyf767
Not sure what car you're using

But the organization I'm a part of usually leaves it loose, get's the car on a drive on lift, then tighten

So it's sitting on its wheels before they tighten
'02 Trans Am.

At this point, if the wheels need to be on and on the ground, I may just put on everything loose, jack it down to the ground, mark the angle, and then jack it back up, remove, and torque to spec. Seems like a PITA, but I want to get it right and not tension the new bushings in the wrong position...
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Old Jul 25, 2023 | 03:09 PM
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So marking it and then tightening it up with the wheel off but in the same position? Sounds solid
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Old Sep 3, 2023 | 02:12 PM
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No, follow the instructions in the 2nd reply.
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