[TR] [6pack] Rear end clunk

[Greg Lemon]

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).

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.

I converted my existing transmission to overdrive rather than going with
the five speed conversion because I like the whole Triumph driving
experience too.

Ultimately, you own your car, do what you want with it.

Greg Lemon
TR250

On Thu, Jan 27, 2022, 10:43 AM dave northrup <dave at ranteer.com> wrote:

> The TR6 rebuild requires special tools, and the cost of a rebuild was not
> far from the cost of replacing it.
>
>
>
> Why replace with a Japanese part?  Quality, cost, plus limited slip.  We
> autocross this thing so that’s a valuable upgrade.
>
>
>
> 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.
>
>
>
> *From:* Triumphs <triumphs-bounces at autox.team.net> *On Behalf Of *TeriAnn
> J. Wakeman
> *Sent:* Thursday, January 27, 2022 10:10 AM
> *To:* triumphs at autox.team.net
> *Subject:* Re: [TR] [6pack] Rear end clunk
>
>
>
> On 1/27/22 7:41 AM, dave northrup wrote:
>
> 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!
>
> Had to do something? And you just couldn't rebuild it with new ring &
> pinion & bearings?????
>
> 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?
>
>  TeriAnn
>
>
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