Steering All Over the Place at 55mph+

67Mungo said
If I can't get it to budge with the puller even with heat. Hack saw, torch, pliers... those old ones are welded on the control arm with rust. Gave it a shot! Passenger side removal tomorrow then time for new UCA's.

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You’re pulling the wrong direction. The pipe coupler has to go on the outside. The lip on the outside is part of the outer shell.