cooper S disc help

[ccharlie6]

this is probably a stupid question but here goes. i'm upgrading my drum braked all around 1983 mini to have cooper S discs on the front but my question is do i need to change the drive shafts for some different ones to bolt the disc arrangement and hubs onto?

[selbymsport]

No such thing as a stupid question just a stupid answer. So hopefully this is not a stupid answer!! You will need to change the cv joint as the spline shaft is a bigger diameter. Not sure if the drive shafts are compatible though? long time since I've messed around with drum type setup.

[love machine]

The CV's from an 8.4" braked mini are the same as S ones. You can use the shafts as well. You will need a set of "different" steering arms. I'm not sure which ones though. I just know that there are several different sorts and the wrong sort leaves you with massive tow out. I imagine that the 8.4 braked ones are the same as S ones. The mk1 rack is a different ballgame though.

[ccharlie6]

alright well im going from a fully drum braked mini to the 7.5 fronts so hopefully the parts ive got should be enough, unfortuantely at the moment i cant get the hub nut off of the front of the S disc setup i have no matter what i do!!! ( they are not on a car at the moment)

[love machine]

Greenstuff pads are awesome IMO.

I would take the opportunity to replace the hubnuts as well, I had one strip on me and it was a nightmare.

Good luck with them, despite what others say, I reckon S Disks are adequate for most things.

[miniman]

ccharlie6 said:

alright well im going from a fully drum braked mini to the 7.5 fronts so hopefully the parts ive got should be enough, unfortuantely at the moment i cant get the hub nut off of the front of the S disc setup i have no matter what i do!!! ( they are not on a car at the moment)

May be worth dragging the whole lot down to a garage or tyre fitter, and ask them nicely to stick an impact gun on it - that should shift it. Can't imagine how hard it would be to shift otherwise - they're bad enough when they are on the car and you can get someone to stand on the brakes while you tt it with a hammer.

[ccharlie6]

well ive taken your advice and they have been shipped down to an engineering company to take the hub nuts off!! as i called defeat after 8ft's worth of leverage did nothing but bend one of my socket bars!! havent seen one bit of movement from the nut after many different attempts (nearly got the welding torch out )

[Cooperman]

Just a thought, but I think the inner pot joints are bigger on the later cars so you may need new inner joints as well.
Someone else might confirm this, as I don't have much experience with the 80's drum-braked cars.