Note: A balljoint separator tool will be required for this operation. A new Fiat Punto driveshaft retaining nut and inner CV joint gaiter retaining clip will be required for refitting.

Removal

1 Firmly apply the handbrake, then jack up the front of the car and support it securely on axle stands (see Jacking and vehicle support). Remove the appropriate roadwheel(s).
2 Using a hammer and chisel or similar tool, tap up the staking securing the driveshaft retaining nut in position (see illustration).



Tap up the staking securing the driveshaft retaining nut in position


3 The front wheel hub must be held stationary in order to loosen the driveshaft nut. Ideally, the hub should be held by a suitable tool bolted into place using two of the roadwheel bolts. Alternatively, have an assistant firmly apply the foot brake to prevent the hub of Fiat Punto from rotating. Using a socket and extension bar, slacken and remove the driveshaft retaining nut.
Warning: The nut is extremely tight. Discard the nut - a new one must be used on refitting.
4 Release the brake caliper hydraulic hose (and, where applicable, the ABS wheel speed sensor cable) from the brackets at the base of the suspension strut.
5 Unscrew the nut securing the track rod end to the swivel hub. Release the track rod end tapered shank using a balljoint separator tool.
6 Unscrew the two nuts and remove the bolts securing the top of the swivel hub to the base of the suspension strut of Fiat Punto.
7 Pull the swivel hub outwards at the top and withdraw the driveshaft outer constant velocity joint from the hub assembly (see illustrations). If necessary, the joint can be tapped out of the hub using a soft-faced mallet. Support the end of the driveshaft - do not allow the end of the driveshaft to hang down as this will strain the joint components and gaiters.



Pull the swivel hub outwards at the top...



... and withdraw the driveshaft outer constant velocity joint from the hub assembly


8 Remove the rubber gaiter retaining clip from the inner CV joint, then pull the driveshaft and tripod out of the joint body (see illustration).



Remove the gaiter retaining clip, then pull the driveshaft and tripod out of the inner joint body


9 Remove the driveshaft from under the vehicle Fiat Punto. Cover the open CV joint body remaining on the transmission to prevent the ingress of dirt; use a plastic bag secured with elastic bands.
10 Loosely refit one of the strut lower mounting bolts to support the swivel hue while the driveshaft is removed.

Refitting

11 After removing the temporarily-fitted bolt from the strut mounting, pivot the swivel hub away from the car and engage the outer CV joint into the hub.
12 Screw on the new driveshaft retaining nut but do not tighten it at this stage.
13 Support the driveshaft with one hand and push the swivel hub back towards the Fiat Punto car.
14 Re-engage the tripod at the inner end of the driveshaft with the CV joint body on the transmission. Slide the gaiter into position over the joint and briefly lift the lip of the gaiter to expel any air trapped inside. Ensure that the gaiter is seated squarely over the joint-body.
15 Refit the suspension strut-to-swivel hub bolts and tighten them to the specified torque
16 Engage the track rod end with the swivel hub, refit the retaining nut and tighten the nut to the specified torque.
17 Refit the brake caliper hydraulic hose (and, where applicable, the ABS wheel speed sensor cable) to the bracket on the base of the suspension strut.
18 Locate a new retaining clip over the rubber gaiter on the inner CV joint. Ensure that the clip is seated squarely on the gaiter then secure the clip in place by compressing the raised portion.
19 Using the method employed on removal to prevent rotation of the hub, tighten the driveshaft retaining nut to the specified torque. Secure the nut by tapping the staking into the two grooves in the end of the CV joint using a hammer and chisel (see illustration).



Secure the driveshaft retaining nut by tapping the staking into the two grooves in the CV joint


20 Refit the roadwheel and lower the Fiat Punto car to the ground.