68 “metal rubbing/torsion” sound very slow turns

[Rudderguy]

Best I can describe it...at very very slow speeds...like crawling in parking lot...when turning i am getting a metal torsion or rubbing sound. Brakes on or off. In gear has no bearing. When i straighten out it disappears after a few feet of straight ahead. This is the only time I hear it. A general look underneath reveals nothing. It sounds as it originating from the rear. It is very prominent.

Any ideas?

[70 sublime]

Do you have a limited slip rear end or just open gears ?

[Rudderguy]

Limited slip...Sure Grip.

[Rudderguy]

So...the ubolts were not that tight...re-torqued them...road test...not it.

But....i think it may be the brakes. Coast into a full left or right not in gear to a stop...put in drive and car will coast out no sound. Ease into tight turn, ease on brakes to stop...then ease off to start again...here comes the very prominent sound. From rear...like "metal on metal" slip/thug kind of sound. But...straight into a slow stop and start...nothing.

Ideas?

[Rudderguy]

Update...

It was the clutches in the sure grip that were worn.

Replaced the clutches...everything else looked great in there. The suregrip and main gear were dated one day apart...March 22 and March 23/68.  Was very interesting to see.

All the noises gone now!