Thread: 101 disk brakes

In the interests of the wider community; Could Iain be convinced to reproduce the moment in the still picture but this time record the whole thing on YouTube?

My front axles pretty shot too. I've started another thread on a Railko conversion I'm keen to pursue.

So do you think the pics are a fake or something

Has anyone ever investigated the front axle from an OKA, early ones came with Dana 60, disc braked and 16" wheels, not sure about the track width though.
Some are replacing with larger Dana series due to the OKA's weight.

Originally Posted by garrycol

So do you think the pics are a fake or something

No, I it can see where you're coming from, I'd just say it if I thought That.

What I did think was a movie of it would just be so much more entertaining.

Originally Posted by puma130tc

Has anyone ever investigated the front axle from an OKA, early ones came with Dana 60, disc braked and 16" wheels, not sure about the track width though.
Some are replacing with larger Dana series due to the OKA's weight.

I did look at this.
A friend has a OKA with a Dana 60 in the front and a Dana Seventy in the rear.
The track is different.
The OKA wheels are larger and it uses a open type unijoint arrangement which is more compact that the 101s C/V joint and therefore has room to fit a disc brake and caliper.
The 101 must run a C/V type joint because of its constant 4WD designed transmission.
Use of the OKA front axle with standard 101 transmission will viberate the steering wheel out of your hands especially when on lock.




Also the hub and wheel for set up is totally different between the two vehicles.
and therefore 8 stud wheels on the front and 6 stud wheels on the rear of a 101 if converted ?????.
Not worth the effort.
The Zeus conversion works.
It should be noted the 101s 6 stud wheel flange is very large as is the 6 stud PCD which therefore requires the inside of a 101s disc to be very large to fit over the hub.
The OKA gets the extra room by using 8 studs of a very small PCD and therefore the internal size of the disc can be much smaller.

Note the large internal diameter of the Zeus disc so it fits the 6 stud large PCD of the 101s hub.

Any conversion using standard 101s wheels ( which is the ideal way to do it) must be done the way Zeus has done it.
Look carefully at the disc, it is machined down between the running surface of the disc and the PCD plate just so its specially made small size caliper will fit in with a standard 101 wheel which must be 4 pot design to give similar pedal feel and a floating caliper just wouldn't have room to move and require a different brake booster to be fitted to give similar brake pedal feel.
Fitting a Disc set up to the front of a 101 is nothing like doing a disc conversion on a series rover or early defender.
Zeus got it right and is worth the money as other options are more stuffing around .
With all parts in hand a Zeus set up can be fitted in a day.
The working surface diameter of the disc of the OKA and the Zeus set up is similar.
The 101s large 6 stud PCD hub comes about by the Military need for a gun tractor which the 101 was designed as, to have possible interchangeable wheels with a gun or trailers it is designed to tow and why a Unimog wheel will fit onto a 101 as they are both military vehicles designed to tow.
The Zeus set up has little in the way of faults.
Pads are extremely easy to change and as I found the oil filler access to the C/V joint can be moved to the front of the C/V.
The disc on my 101 shows no wear and is a two piece set up so if it does wear it is not a big job for a machine shop to make a new one as the wear part of the disc is just that a flat disc.
This design greatly reduces any chance of Disc warping with heat too.
Have I sold you blokes yet ??????
I have looked at various options before jumping in at the Zeus.
Ron......... humble 101 nut.