<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">  So I remember reading, I believe on the list, that when the ring and pinions as original from Triumph were manufactured that they were run with a compound that bedded the ring and pinion as a “set” and that this considerably reduced differential howl. I think that the thread was to the effect that the new ring and pinion sets were not “matched and thus a lot louder.<div class=""><span class="Apple-tab-span" style="white-space:pre">   </span>Does anyone know (remember) if this is correct?</div><div class=""><span class="Apple-tab-span" style="white-space:pre">   </span>Best,</div><div class=""><span class="Apple-tab-span" style="white-space:pre">     </span>Bob</div><div class=""><span class="Apple-tab-span" style="white-space:pre">       </span>’72 TR6<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Jan 27, 2022, at 1:05 PM, Greg Lemon <<a href="mailto:grglmn@gmail.com" class="">grglmn@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="auto" class="">Meant to add, everything was bolt on parts, pretty easy.  A transmission jack is a good idea, I used to horse the things up from under the car by myself, but those days are gone.  I fabricated a wooden cradle that I attached to my regular floor jack when I put mine in.<div dir="auto" class=""><br class=""></div><div dir="auto" class="">I had some tight clearances with my dual exhaust, but it is not stock.</div><div dir="auto" class=""><br class=""></div><div dir="auto" class="">Greg</div></div><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jan 27, 2022, 11:27 AM Jeff Nathanson <<a href="mailto:jeffn@msystech.com" class="">jeffn@msystech.com</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple" class=""><div class="m_-477123215316727118WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d" class="">Greg,<u class=""></u><u class=""></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d" class=""><u class=""></u> <u class=""></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d" class="">Was this an easy job to retrofit? Or did it require any modifications?<u class=""></u><u class=""></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d" class=""><u class=""></u> <u class=""></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d" class="">Thanks,<u class=""></u><u class=""></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d" class="">Jeff N.<u class=""></u><u class=""></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d" class="">’72 TR6<u class=""></u><u class=""></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d" class=""><u class=""></u> <u class=""></u></span></p><p class="MsoNormal"><b class=""><span style="font-size:11.0pt;font-family:"Calibri",sans-serif" class="">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif" class=""> Triumphs [mailto:<a href="mailto:triumphs-bounces@autox.team.net" target="_blank" rel="noreferrer" class="">triumphs-bounces@autox.team.net</a>] <b class="">On Behalf Of </b>Greg Lemon<br class=""><b class="">Sent:</b> Thursday, January 27, 2022 10:28 AM<br class=""><b class="">To:</b> Alex & Janet Thomson <<a href="mailto:aljlthomson@charter.net" target="_blank" rel="noreferrer" class="">aljlthomson@charter.net</a>>; Triumphs <<a href="mailto:triumphs@autox.team.net" target="_blank" rel="noreferrer" class="">triumphs@autox.team.net</a>><br class=""><b class="">Subject:</b> Re: [TR] [6pack] Rear end clunk<u class=""></u><u class=""></u></span></p><p class="MsoNormal"><u class=""></u> <u class=""></u></p><div class=""><p class="MsoNormal">I chased after a "rear end" clunk for years.  Decided it was in the differential, and decided to replace it with a Nissan R200 limited slip after replacing u-joints and checking mounts many times.  When I was installing the differential and new, shortened drive shaft I discovered one of the transmission mount bolts had gone missing.<u class=""></u><u class=""></u></p><div class=""><p class="MsoNormal"><u class=""></u> <u class=""></u></p></div><div class=""><p class="MsoNormal">If you are not finding it, may be worth expanding your search, however, the only when cold thing is a bit of a head scratcher.<u class=""></u><u class=""></u></p></div><div class=""><p class="MsoNormal"><u class=""></u> <u class=""></u></p></div><div class=""><p class="MsoNormal">BTW, very glad I did the diff swap, even though it was not the cause of the clunk, car is much quieter, especially  with the top up.<u class=""></u><u class=""></u></p></div><div class=""><p class="MsoNormal"><u class=""></u> <u class=""></u></p></div><div class=""><p class="MsoNormal">Greg Lemon<u class=""></u><u class=""></u></p></div><div class=""><p class="MsoNormal">TR250<u class=""></u><u class=""></u></p></div></div><p class="MsoNormal"><u class=""></u> <u class=""></u></p><div class=""><div class=""><p class="MsoNormal">On Thu, Jan 27, 2022, 9:10 AM Alex & Janet Thomson <<a href="mailto:aljlthomson@charter.net" target="_blank" rel="noreferrer" class="">aljlthomson@charter.net</a>> wrote:<u class=""></u><u class=""></u></p></div><blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in" class=""><div class=""><div class=""><p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1f497d" class="">Don’t rule out worn driveshaft U-joints or worn/loose mounting bushings on the differential itself.</span><u class=""></u><u class=""></u></p><p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1f497d" class=""> </span><u class=""></u><u class=""></u></p><p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1f497d" class="">Alex Thomson</span><u class=""></u><u class=""></u></p><p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1f497d" class=""> </span><u class=""></u><u class=""></u></p><p class="MsoNormal"><b class=""><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif" class="">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif" class=""> 6pack [mailto:<a href="mailto:6pack-bounces@autox.team.net" target="_blank" rel="noreferrer" class="">6pack-bounces@autox.team.net</a>] <b class="">On Behalf Of </b><a href="mailto:otral@juno.com" target="_blank" rel="noreferrer" class="">otral@juno.com</a><br class=""><b class="">Sent:</b> Thursday, January 27, 2022 9:43 AM<br class=""><b class="">To:</b> <a href="mailto:6pack@autox.team.net" target="_blank" rel="noreferrer" class="">6pack@autox.team.net</a><br class=""><b class="">Subject:</b> [6pack] Rear end clunk</span><u class=""></u><u class=""></u></p><p class="MsoNormal"> <u class=""></u><u class=""></u></p><div class=""><p class="MsoNormal">Twenty years of rear end clunk when I put it in reverse with cold engine and I'm tired of it. But as soon as the engine warms up it disappears and i dismiss it. Do I bite the bullet and get it checked out? I'm sure my mechanic will say get it fixed. And how much do you think a repaired rear end will cost me? <u class=""></u><u class=""></u></p></div><div class=""><p class="MsoNormal"> <u class=""></u><u class=""></u></p></div><div class=""><p class="MsoNormal">Al in CT with 74 French Blue<u class=""></u><u class=""></u></p></div><p class="MsoNormal"><br class=""><br class=""><span style="font-size: 10pt;" class="">____________________________________________________________</span><br class=""><a href="https://store.netzero.net/account/showService.do?serviceId=nz-nLifeLock&utm_source=mktg&utm_medium=taglines&utm_campaign=nzlifelk_launch&utm_content=tag695&promoCode=A34454" target="_blank" rel="noreferrer" class=""><b class=""><span style="font-family:"Arial",sans-serif;color:#004080;text-decoration:none" class="">Choose to be safer online.</span></b><span style="font-family:"Arial",sans-serif;text-decoration:none" class=""><br class=""></span><span style="font-size: 10pt; font-family: Arial, sans-serif; text-decoration: none;" class="">Opt-in to Cyber Safety with NortonLifeLock.<br class="">Plans starting as low as $6.95 per month.*<br class=""></span></a><span style="font-size: 10pt; font-family: Arial, sans-serif;" class=""><a href="https://store.netzero.net/account/showService.do?serviceId=nz-nLifeLock&utm_source=mktg&utm_medium=taglines&utm_campaign=nzlifelk_launch&utm_content=tag695&promoCode=A34454" target="_blank" rel="noreferrer" class="">NetZero.com/NortonLifeLock</a></span> <u class=""></u><u class=""></u></p></div></div><p class="MsoNormal" style="margin-bottom:12.0pt">_______________________________________________<br class="">Support <a href="http://Team.Net" class="">Team.Net</a> <a href="http://www.team.net/donate.html" target="_blank" rel="noreferrer" class="">http://www.team.net/donate.html</a><br class="">Suggested annual donation  $12.96<br class="">Archive: <a href="http://www.team.net/archive" target="_blank" rel="noreferrer" class="">http://www.team.net/archive</a><br class=""><br class=""><br class=""><a href="mailto:6pack@autox.team.net" target="_blank" rel="noreferrer" class="">6pack@autox.team.net</a><br class=""><a href="http://autox.team.net/mailman/listinfo/6pack"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