Same problem here too. The nut seems to be okbut the assembly that should somehow attach to the piece the nut screws on isn't attached anymore!
I've been reaching thru the little access door inside the right rear hatch nad holding the cable and plastic nub forward while reaching around the outside and closing the door.
I'm not sure what i need to buy to fix it ... but it's mootpoint as my 89 hatchback just had a sudden loss of coolant and is offline
-Brad