Got me flummoxed a bit too......the driveshafts shouldn't move in and out of the gearbox, but they are free to move on their splines -although the movement will be minimal.
If there's a knocking noise when the car is driven on full lock, then it's a CV joint issue.
John
This is on no lock he could physically pull them out of the gear box i thought it was brakes at first then he checked it over was the drive shaft and welding needing doing in sils
The driveshafts usually lock into the differential using snap rings (a sort of circlip) but leaving them out does little harm.
The sill issue gives us some concern though.....maybe a pic or two would help?
John
Okay then and he just tapped around the base of the car lightly and it went straight through 2 of the sils because he is a neighbour hes welding it for free car doesnt look like its had much done in the 16 years its been around
If the gearbox is losing much oil there is a problem that needs fixing. However if the rust is serious it would seem the car isn't going to last much longer