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Joined: Sat Oct 21st, 2017
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when you install new control arms you need to set the pre load on the bushings, otherwise they will twist beyond their range of travel and squeek
So you basically need to keep the UCA through bolts slightly loose when you drop stab the upper ball joint and finally put the truck back down on the front tires under its weight and at ride height...then torque them down
Same goes for LCA bushings
How interesting.. I use to correct peoples chassis issues back in the day because they would install a Strut tower brace, especially FWD forward brace's and they would just bolt them on without taking the preload off the car. You have to lift the vehicles wheels and tires off the ground, Tq to spec and then set the car down THEN you see the effect the strut tower brace/Rear brace was meant to do. Otherwise bolting it on and going did really much nothing. sure it made it a little more rigid but still not functioning correctly.
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