Reply to "New Paint & a Dyno"

Laslo.
I have modified my rear uprights, bored out & shrunk fit/scotched keyed a sleeve in.
Then fitted large 80mm OD taper roller bearings.
So they are very tough.
I stayed with standard length M12 wheel studs to maintain strength.
When the new rims are made they will also have a centre location diameter to share the load.

With a modern car & a front face wheel, to maintain the same track the car would have longer suspension arms.
So uprights, brakes & suspension arms are tucked up inside the wheel.
Most of the cornering loads are transmitted to the wheel rim at the outer shoulder of the tyre.
(Hence the reason why offroad racers only run bead-lock plates on the outside & not the inside of the rim as this is where the leverage is).
The force on the rim will remain the same, but the rim construction is different.
So the modern front face rim transmits the loads directly into the face of the rim where the studs are.
This is more ideal.
As opposed to the Pantera outward offset rims where the load is trying to flex the outer rim.
Not as ideal, but looks better on a 70's vintage car.

So it’s another good reason not to run super low profile tyres, (20 & 25 profile) on rims that are widened outward. As the tyre has very little give & will transmit more shock loadings to the rim.

Attached is a picture of a section view of the modified Pantera upright.
Orange area is the new steel sleeve on the inside of the upright.
As mentioned above, this is shrunk fit & scotch keyed into the original upright.
The upright is cast iron construction so welding is a bad idea, hence the mechanical fixing of the sleeve.
The outside of the upright does not need boring out to suit the bearing, its already 80mm diameter.
Blue area is the original upright.
Yellow area on the inside is a bolt on Aluminium seal housing.
Red area on the outside is also a bolt on seal housing.
Red area on the inside is the original driveshaft flange.
Aqua green area on the outside is a combined axle spacer/inner seal diameter.
Black area is an Alloy Wilwood brake rotor hat mounted on the outside of the axle hub face.
Wilwood rotors.
This drawing also shows the Adaptor flanges & 930 CV joints/axles.

regards,
Tony.