[Fot] TR4 axle shafts

[John Styduhar]

The stock diameter of the TR3 and 4 axle at the spline is 1.04 inches.  I
took this measurement from a stock axle I had in my shop.  The aftermarket
axle has the same diameter at the spline as you would expect.  Approx. 6
inches from the inboard end, the aftermarket axle has a gentle taper to a
diameter of 1.20 inches and continues at this diameter to the bearing
location which is approximately 4 inches from the back of the hub flange.
The diameter of the axle at the bearing location is 1.38 inches.  The axle
diameter increases to 1.78 inches on the outboard side of the bearing and
continues to the back of the hub flange at this diameter.


On Tue, Jan 21, 2014 at 5:56 PM, MadMarx <tr4racing at googlemail.com> wrote:

> Anybody knows the diameter of the Southwick axle?
> I managed to do a successful calculation with a spline design and the stock
> diameter of 33.02mm (I used 33mm = 1.299").
> The steel needs to be quite good with a surface hardening of 0.11" depth.
>
> As Steel I would like to use X19NiCrMo4 if this is available at reasonable
> cost.
> Any suggestions?
>
> Chris
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