Lower control arm issues, Damaged thread, 1965 C10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

banno · 03-29-2026, 08:21 AM

Hello all,
after many years of fun with my 1965 C10, it's time for an overhaul of my front suspension.
Unfortunately I'm struggling with the reassembly of the lower control arm. It seams that one of the inside threads of the control arm is damaged. It's not possible to mount the bushing of the control arm shaft.
Does anybody know the dimensions and pitch of this special thread?
Is it's possible to rework it with a screw tap or a thread file?
Thanks in advance.
Martin

03-29-2026, 08:21 AM	#1
banno Registered User Join Date: May 2011 Location: Germany Posts: 16	Lower control arm issues, Damaged thread, 1965 C10 Hello all, after many years of fun with my 1965 C10, it's time for an overhaul of my front suspension. Unfortunately I'm struggling with the reassembly of the lower control arm. It seams that one of the inside threads of the control arm is damaged. It's not possible to mount the bushing of the control arm shaft. Does anybody know the dimensions and pitch of this special thread? Is it's possible to rework it with a screw tap or a thread file? Thanks in advance. Martin Attached Images

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