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Re: RotoFlex Suspension a.EDU>

To: Chip19474@aol.com
Subject: Re: RotoFlex Suspension a.EDU>
From: erl@unix.mail.virginia.edu
Date: Tue, 28 Nov 2000 11:05:35 -0500 (EST)
Cc: triumphs@autox.team.net
Mmdf-warning: Parse error in original version of preceding line at mail.virginia.edu
I don't know about the GT6+, but this divice is standard on BMW's.  My BMW
6er (a large, 4000lb touring coupe, as well as a high performance car)
uses one of these between the trans output and the drive shaft.  They have
about a 75K life expectancy and cost about $40.  However, they are PITA to
replace, since you need to drop the drive shaft to replace them!

Cheers

On Tue, 28 Nov 2000 Chip19474@aol.com wrote:

>
> List,
>
> What a curiosity this is.....a rear suspension that transfers power to the
> wheels through a rubber donut.
>
> I'm familiar with the term but had never seen "it" until last week when I had
> a chance to see "it" (assembled and dis-assembled) on a GT6+.  At first I
> thought how clever it was to use a big rubber bushing donut to absorb changes
> in axle torque and loads to the rear wheels but after I saw the results of
> the rubber bushings delaminating from their metal washers, etc, I began to
> wonder why Triumph did this......well, I'm guessing that money was at the
> heart of the decision.
>
> I have a few books that address Spitfire & GT6 history but thought I'd ask
> the forum that question....."Why did Triumph use rotoflex in lieu of perhaps
> a sway bar/swing axle Spit suspension or even an IRS setup?"
>
> Chip Krout
> '76 TR6 CF57822U (chassis finished - working on body & engine)
> '70 Spit Mk3  FDU78512L (tucked away for a long winter's nap)
>

James A. Ruffner

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