8 replies to this topic

[elect]

Hi New to this forum so please forgive me if i ask daft questions!! i want to swap my old type uj couplings on my 1967 998 mini cooper to the cooper s spec hardy spicers ive been given the ends that go on the drive shaft with the hardy spicer joint on what do i need to go into the gearbox output shafts instead of the yoke things and is it an easy swap? Any help would be much appreciated.

 

Thanks

[Jamdog]

No, it’s really not an easy swap. First of all the flange on the differential will be wrong and it’s not something usually gets swapped because it involves some dismantling of the gearbox (not sure how much because I’ve never done it).

I know for sure that the cv joint on the outer part of the driveshaft is a different size for spicer type driveshafts than it is for rubber UJ style ones, and I’m guessing that the actual shaft itself that goes between the cv joint and the spicer joint is a different size.

I would just sell the hardy spicers, they’ll be worth over £100 as a pair and install pot joints instead. They’re better than hardy spicers and a much more common swap.

[nicklouse]

No, it’s really not an easy swap. First of all the flange on the differential will be wrong and it’s not something usually gets swapped because it involves some dismantling of the gearbox (not sure how much because I’ve never done it).

I know for sure that the cv joint on the outer part of the driveshaft is a different size for spicer type driveshafts than it is for rubber UJ style ones, and I’m guessing that the actual shaft itself that goes between the cv joint and the spicer joint is a different size.

I would just sell the hardy spicers, they’ll be worth over £100 as a pair and install pot joints instead. They’re better than hardy spicers and a much more common swap.

not quite true there. the drive shafts and out CV are the same.

[viz139]

Its an engine out job because the dif outputs have to be changed which means removing the diff cover from the rear of the gearbox and dismantling the diff itself.

[Spider]

As Viz139 has said, it is an engine out job.

 

You'll need to remove the diff from the gearbox and strip it down to swap the Output Shafts, then reassemble, refit and swap the Diff Side Covers on the Gearbox and also fit the Output Flanges on the diff, then the engine can go back in.

 

 

No, it’s really not an easy swap. First of all the flange on the differential will be wrong and it’s not something usually gets swapped because it involves some dismantling of the gearbox (not sure how much because I’ve never done it).

I know for sure that the cv joint on the outer part of the driveshaft is a different size for spicer type driveshafts than it is for rubber UJ style ones, and I’m guessing that the actual shaft itself that goes between the cv joint and the spicer joint is a different size.

I would just sell the hardy spicers, they’ll be worth over £100 as a pair and install pot joints instead. They’re better than hardy spicers and a much more common swap.

 

not quite true there. the drive shafts and out CV are the same.

 

The Outboard CVs can remain and you can use the drive shafts you have, however, to be strictly 100% correct here, the Drive Shafts that did go with the HS Uni Joints were fractionally short and had a 'bump' in them to ID them, however, as already mentioned, you can use the Drive Shafts that were used with the Rubber Uni-joints.

[imack]

You either need the full 'S' setup, output shafts, output flanges, bolts collets and seals and 'S' side plates with larger bushes and seals, or probably the cheaper option of pot joint output shafts with the relatively rare Leyland hardy spicer flanges that fit to the output shaft as per a pot joint. These were fitted I believe to the last of the hardy spicer jointed automatic minis, but they still require the 'S' side plate with larger bush.
Alternatively the likes of MED and I think swiftune sell a hardy spicer flange that fits to pot joint output shafts and fits the standard smaller bushed side plates, this is probably the easiest / cheapest option.
Whichever way you go it's an engine out job and different strip and rebuild.

[Jamdog]

Sorry, I got confused between the different sized CV joints based on whether you have drum brakes or disc, the rest of the driveshaft is unrelated. But as others have said, it’s still a big job.

Why do you want to change them? Is it for reliability or are you upping the power of your engine etc...

[timmy850]

I did this a couple of years ago..

Remove


Install

[elect]

Thanks for all the replys looks like i will go down the pot joint option as it looks a bit cheaper in the long run, engine coming out over winter anyway so plenty of time to sort out.

 

Thanks