Where are these shafts available?
Lee Thompson
'71 Stag
----- Original Message -----
From: Jim Hill <Jim_Hill@chsra.wisc.edu>
To: <triumphs@autox.team.net>
Sent: Thursday, September 16, 1999 2:47 PM
Subject: RE: UJ verses CV joints (What's the main difference?)
>
>
>
> On Thursday, September 16, 1999 12:13 PM, sujit roy
> [SMTP:sujitroy@hotmail.com] wrote:
> >
> > I've seen after market half shafts advertised for the Stag with CV
joints
> > compared to the Standard UJs' What's the major difference between the
two
>
> > types of joints?
>
> As I understand it:
> The design of CV joints allows them to operate at high angles (over 40
> degrees) - enough to cope with suspension travel and some lateral
movement,
> while providing a constant velocity to the axle regardless of the
operating
> angle. The CV joint can be thought of as essentially two universal joints
> connected together at an angle. When lateral play is required, this angle
> increases or decreases.
> On an IRS TR rear axle, the standard u-joints do not allow sufficient
> suspension movement without binding. As the rear A-arm drops down
vertically
> and the dif stays in place, the distance between the dif and the hub
becomes
> greater - resulting in lateral stress.
> To solve this problem, the TR axle is splined to allow the two parts of
the
> axle to slide back and forth, thus changing the effective length of the
> axle. If (or rather "when") the two parts of the axle lock together under
> hard cornering, suspension damage is the likely result - sometimes with
> catastrophic results. The CV axles do NOT need sliding spline axles.
>
> The Stag CV joint rear axles are, I believe, the same as the ones I've
> installed on my TR6.
>
> Jim Hill
> Madison
>
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