TWB
Yes...had to manually deploy spoilers a couple of times.(lack of wheel spin up).
They are not differential.
Nearly ran off the end of Gottenborg.IIRC...DC9-51..after landing behind an AF bus ...rwy reports good but Bus used lots of reverse which melted the frozen, sanded rwy surface which refroze and gave us a skating rink.
Had to have the engines borescoped....as set emergency reverse at lowish speed...engines surged several times...but am here to tell the tale.