Only thing to add is that The Cooper S used wet frames up to the end....71

Thanks to all.

The estate/van/pick-up were always rubber cone suspension like sedan before 65' and again 70' to 75'.  Hydrolastic sedans of 65' to 69'+ used distinctly different front subframe which used different bolts and no spacers to the upper mounts.  Rear hydro frame was basically the same as dry except for the seating area of the spring/hydro unit.  Rear hydro can easily be modified to accept rubber spring by bending hydro mounting tabs, not a good choice for coil spring conversion as it has no locating mount for the spring to set in.  Front hydro frame  for dry conversion has the same issues in the frame where the spring sits would likely make the car sit low with standard components but should get up to reasonable height with adjustable trumpets.  

The LWB vehicles were fitted with longer rear trumpets with a larger spring contact area to give more carrying capacity than the sedan.  The larger contact area was fazed into production sedan rear trumpets and made even larger in aftermarket ones like original HI/LO.

The front subframes will be different, as the LWB vehicles never got hydrolastic so will be of the dry variety. The rear subframes are the same, but the trumpts are longer to give more rideheight.

Thank you.

No differences!

Can anyone shed light on the differences (if any) of the subframes between a 1966 Mini Estate/Van and a standard mini of the same age?

Thanks,