NEED HELP!! saxo drive shaft nut wont come off

[saxo331]

right he is my problem i am a training mechanic and i am fixing my own car the problem is i am changing form a 3 stud to the 4 stud but the nut on the drive shaft wont move i also cant use the following idears:
screw driver in the brake disc to stop it spining at it does not have holes, cant put brakes on to stop it spining as i turn it as brake pipe is split and cant use air gun as i dont have one i other ideas are welcome as i am all out if ideas

[Ali123]

Well I was gonna say get someone to sit in the car and hold the brake, but er my entirely sure what else you can do?

[tillygti6]

http://www.pistonheads.com/gAssing/topic.asp?h=0&t=1156992&mid=0&nmt=TVR+S2+Rear+discs

click the link a couple of pics down the page....

[tillygti6]

or even easier, put the car back on its wheels, with a wheel with no centre cap. and chock the car and undo

[saxo331]

thanks i will try it the nut looks knocked in to the shaft is that normal?

[Tamshoe]

Yeah, just secures the nut in place, stops it working loose.

[saxo331]

kk does it need to be knocked back out to come free or not

[tillygti6]

just be a man and undo it, ideally you ought to replace the hubnuts, but if thats not an option swap them from side to side. and use a punch to nip the end back into the cutout in the shaft when done,