Hardy spicer splines

[Minicooper1964]

Will the hardy spicer splined couplings fit on to Mk 1 Cooper S 1965 drive shafts . The existing couplings are the type used for rubber doughnut type devices.
Thinking of changing as the ‘doughnut type couplings are very close to the mini spares exhaust down pipe

[Herbert]

All driveshaft inner splines are the same. R

[timmy201]

They are the same for rubber cross and hardy spicer

Pot joints are different and also have circlips

[Herbert]

Pot joints have totally different driveshafts

[iain1967s]

For remote and magic wand diffs they are all the same post-1960 until introduction of the rod change box (pot joints) in 1973.
Pre-1961 yokes look superficially the same but driveshafts had different spline profile and count, so won’t interchange.

[Minicooper1964]

Thanks to all who replied

[Rusty old S]

The shafts that run rubbers are longer by about 10mm than the S/auto type defined by the blob on the shaft, they will fit but slightly more difficult when putting in power unit as won’t slide back as far.