<div dir="auto">Will echo what Dave said, I will tackle about anything, but won't do differentials, nor do I have anybody local I trust to do it. The differentials were generally pretty quiet when new, but from what I have read and experienced a rebuilt may or may not whine a little at certain speeds, pretty hit or miss, the one I replaced was rebuilt and made a lot of noise. Plus the Nissan unit was designed to take much higher torque and hp than the Triumph diff, plus limited slip (I autocross too).<div dir="auto"><br></div><div dir="auto">I don't think the diff swap changes the character of the car at all (kind of like pertronix, reversible, doesn't really change the car, just modern and pretty bulletproof) I hear a little more engine noise and a little less differential, that is a good thing. </div><div dir="auto"><br></div><div dir="auto">I converted my existing transmission to overdrive rather than going with the five speed conversion because I like the whole Triumph driving experience too.</div><div dir="auto"><br></div><div dir="auto">Ultimately, you own your car, do what you want with it. </div><div dir="auto"><br></div><div dir="auto">Greg Lemon</div><div dir="auto">TR250</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jan 27, 2022, 10:43 AM dave northrup <<a href="mailto:dave@ranteer.com">dave@ranteer.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">The TR6 rebuild requires special tools, and the cost of a rebuild was not far from the cost of replacing it.<u></u><u></u></p>
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<p class="MsoNormal">Why replace with a Japanese part? Quality, cost, plus limited slip. We autocross this thing so that’s a valuable upgrade.
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<p class="MsoNormal">I agree in principle with your comment. I like the car to be “in keeping” with the original, at least period upgrades. I’m not a fan of, for example, modern engine swaps. You could, for example, say the same about wheels. Those original
wheels are poor quality, and refurbishing them is more expensive than replacing them. Same thing with the Nissan diff; much better quality and performance at a similar cost so that makes sense.
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<p class="MsoNormal"><b>From:</b> Triumphs <<a href="mailto:triumphs-bounces@autox.team.net" target="_blank" rel="noreferrer">triumphs-bounces@autox.team.net</a>> <b>On Behalf Of
</b>TeriAnn J. Wakeman<br>
<b>Sent:</b> Thursday, January 27, 2022 10:10 AM<br>
<b>To:</b> <a href="mailto:triumphs@autox.team.net" target="_blank" rel="noreferrer">triumphs@autox.team.net</a><br>
<b>Subject:</b> Re: [TR] [6pack] Rear end clunk<u></u><u></u></p>
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<p class="MsoNormal">On 1/27/22 7:41 AM, dave northrup wrote:<u></u><u></u></p>
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<p class="MsoNormal">We put a Nissan Q45 limited slip diff in our TR6. Extremely quiet and reliable. The old diff was howling so we had to do something!<u></u><u></u></p>
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<p>Had to do something? And you just couldn't rebuild it with new ring & pinion & bearings?????<u></u><u></u></p>
<p>In the late 80s my TR3's diff was screaming. The Ring & Pinion gears had worn to the point where the gears were sharply pointed. A rebuild with new gears left it quiet. A few years later British Frame & Engine had a sale on limited slips that fit the TR3,
so my 3 now has limited slip diff inside the TR3 axle housing. All without going to Japanese assembly swaps. I suspect your TR6's diff was quiet and reliable for decades before it wore out. If an assembly provides good decades long service before it wears
out, why not rebuild it to new spec instead of running out and replacing it with a non-Triumph assemblies?<u></u><u></u></p>
<p> TeriAnn<u></u><u></u></p>
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