<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;color:#0000ff">most likely the pinion has lost its preload and it is moving in and out along the face of the ring gear...ie changing the pattern and causing a whine. Sometimes the carrier bearings will wear and cause a pattern shift, but usually a growling from the bearings accompanies the whine</div><div class="gmail_default" style="font-family:tahoma,sans-serif;color:#0000ff"><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><font face="comic sans ms, sans-serif" color="#0000ff">Chip Collingwood</font><div><a href="http://theukmotorsports.com" target="_blank"><font face="comic sans ms, sans-serif" color="#0000ff">theukmotorsports.com</font></a></div><div><font face="comic sans ms, sans-serif" color="#0000ff">(804) 564-1839</font></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Aug 19, 2020 at 11:39 AM Robert Lang via Fot <<a href="mailto:fot@autox.team.net">fot@autox.team.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px"><div></div>
<div dir="ltr">CHECK IT BEFORE YOU DESTROY IT. <br></div><div dir="ltr"><br></div><div dir="ltr">Whining is because the gears aren't meshing properly. This will result in premature wear if you're lucky. If you are not lucky, you'll overheat the diff and / or otherwise destroy it. Sometimes the noise can be from something really dumb, like the ring gear bolts backing out and you find out when one of the bolts wedge in the diff case with the resulting damage to everything. Not that I've done that or anything.<br></div><div dir="ltr"><br></div><div dir="ltr">And keep in mind that scrap steel prices are "fairly low".</div><div dir="ltr"><br></div><div dir="ltr">Regards,</div><div dir="ltr">Bob Lang</div><div dir="ltr"><br></div><div><br></div>
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On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn McKearn via Fot <<a href="mailto:fot@autox.team.net" target="_blank">fot@autox.team.net</a>> wrote:
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<div><div id="gmail-m_4127443740588497965ydp256e4462yiv0720270631"><div dir="ltr"><div>Hi All.</div><div> I am hearing some whining going on behind me when driving my 68 GT6..</div><div> It is only at neutral acceleration/deceleration and above 40 MPH ( There is no whine when accelerating or decelerating). Stock 3.27:1 rear end.</div><div> Any thoughts ?</div><div> Thanks Pat</div></div>
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