[DeTomaso] Which axles on which side?
Larry Stock
larrys at panteraparts.com
Fri May 27 16:44:52 EDT 2016
The nut is on the inside of the axle, not on the outside like a knock off.
On 5/27/16, 12:35 PM, "DeTomaso on behalf of Tomas Gunnarsson"
<detomaso-bounces at server.detomasolist.com on behalf of guson at home.se>
wrote:
> I'm pretty sure it's the other way around. Left side of the car, RH
> thread.
>
> Tomas
> <-----Ursprungligt Meddelande----->
> From: Guido deTomaso [guido_detomaso at prodigy.net]
> Sent: 27/5/2016 8:23:20 PM
> To: b.hower3400 at yahoo.com;vinh.d.ly at gmail.com;larrys at panteraparts.com
> Cc: MikeLDrew at aol.com;detomaso at detomasolist.com
> Subject: Re: [DeTomaso] Which axles on which side?
> Late to this party.
> Pretty hard to imagine skidding to a stop and having the left side lug
> nuts spin off because of angular momentum, the hub stopped but the lugs
> kept spinning. Similarly hard to imagine the lightweight Pantera axle
> nut continuing to spin even if not tightened since it has a friction
> feature. Any fastener tightened at all is going to produce enough
> friction to be impervious to angular momentum / angular velocity
> changes.
> The self-tightening phenomenon is somewhat easy to predict where
> there's a rotating load and a thread. A bicycle pedal is a good
> example, if you can visualize the weight of the rider's foot going
> around a loose thread, visualize the male thread of the pedal shaft
> "walking" around the female thread of the crank arm, you may be able to
> predict which side will be self-tightening with a LH thread.
> Similarly British car knock off caps, if the hubs are put on the wrong
> side of the car, or the car is towed backwards, good chance the wheels
> will fall off, hasn't happened to me but I've heard several 1st person
> accounts. Again if you look at the weight of the car, visualize it
> walking around the thread, you can predict that the right side of the
> car will get the LH thread. ( Hit the top of the knock off toward the
> rear of the car to tighten ). LH threaded lug nuts, still used I
> believe on heavy-duty trucks, same principle.
> Other times reverse thread seems to be there only in case of
> catastrophe: Witness every VW and Porsche I'm aware of, they put a LH
> thread on the left side front spindle. Now this has no weight on the
> thread ... in order for the nut to want to turn, first the outside
> bearing would have to start spinning on the spindle, then the d-shape
> washer would have to fail, and the cotter pin or clamping feature would
> have to fail, ONLY THEN the reverse thread would save the day, until
> the heat build up snaps the spindle anyway.
> On the Pantera ... I don't see any path for the weight of the car to
> walk around the thread of the axle nut ... maybe it's there but I can't
> see it. However if under acceleration the flange spline failed, the
> nuts would tighten if they followed the flange, yes ? Perhaps this is
> the only reason for the handed thread in this application.
> Or so it seems to me, I could be wrong.
> GD
> From: B Hower via DeTomaso <detomaso at server.detomasolist.com>
> To: Vinh Ly <vinh.d.ly at gmail.com>; Larry Stock
> <larrys at panteraparts.com>
> Cc: Mike Drew <MikeLDrew at aol.com>; "detomaso at detomasolist.com"
> <detomaso at detomasolist.com>
> Sent: Sunday, May 22, 2016 12:44 PM
> Subject: Re: [DeTomaso] Which axles on which side?
> You would probably never notice a problem.
> Bud #3400 ( Drive it like there is no tomorrow -- for there may not
> be
> ! )
> __________________________________________________________________
> From: Vinh Ly <vinh.d.ly at gmail.com>
> To: Larry Stock <larrys at panteraparts.com>
> Cc: Mike Drew <MikeLDrew at aol.com>; detomaso at detomasolist.com
> Sent: Friday, May 20, 2016 12:56 PM
> Subject: Re: [DeTomaso] Which axles on which side?
> Question, what would be the ramifications if the axles were
> incorrectly
> installed on the wrong side?
> Thanks,
> Vinh Ly
> #7445
> On Fri, May 20, 2016 at 1:48 PM, Larry Stock
> <[1][1]larrys at panteraparts.com> wrote:
> S= Sinestro or Left (the Sinister hand that holds the sword when
> dueling
> with the Romans) that goes on the Left side (drivers side)
> Mike, you win the prize for getting this one correct
> Larry
> On 5/20/16, 10:33 AM, "DeTomaso on behalf of Mike Drew via
> DeTomaso"
> <[2][2]detomaso-bounces at server.detomasolist.com on behalf of
> [3][3]detomaso at server.detomasolist.com> wrote:
> >Hi guys,
> >
> >I thought I would lead off with he first technical question on the
> new
> >forum.
> >
> >The rear axles are marked S and D, for 'left' and 'right'
> respectively.
> >But that speaks to the thread direction (one of them is reverse
> thread,
> >left to tighten)
> >
> >It's my belief that the S or left-tighten axle goes on the left
> side
> of
> >the car but I can't remember for sure. Can somebody confirm or
> deny?
> >
> >Thanks!
> >
> >And welcome back!
> >
> >Mike
> >
> >Sent from my iPhone
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