SS lower control arm rebuild
Senior Member
Joined: 08-03-2010
Posts: 3,564
From: Lake Ronkonkoma, N.Y.
The pinch bolt goes into the groove to insure the stud does not pull out (sounds dirty). Ideally you would want the sleeve to also be held by the pinch bolt. I am assuming that the groove is also .022 smaller
That groove is the only thing keeping the stud in the knuckle when you install the smaller ball joint since the pinch doesn't close enough.
That groove is the only thing keeping the stud in the knuckle when you install the smaller ball joint since the pinch doesn't close enough.
Administrator
Joined: 10-13-2011
Posts: 40,083
From: Welland,Ont Canada
The pinch bolt applies pressure to the two sides of the knuckle to hold the ball joint pin in the knuckle.
But at only 37 ft lbs if torque it’s the fit that holds the pin, to loose and the knuckle could crack.
Moderator
Joined: 01-23-2009
Posts: 26,533
From: Fredericksburg,VA
I am talking in-out not friction. The bolt in the notch keeps the stud from dropping out because 37 ft lb is not much to cinch it. It is what has saved all of those that put LS/LT ball joints on, without the bolt in the notch the LCA would be on the ground after the first bump in the road because the pinch was not pinching.
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Aug 9, 2018 08:32 AM