Fitting a driveshaft cup boot properly

On my Williams 3, the driver’s side driveshaft had a cut in the boot, so, I’ve removed it, and bought a replacement boot.

The old boot:
https://cliosport.net/attachments/c1...6-jpg.1539282/



The replacement boot:
https://cliosport.net/attachments/ac...8-jpg.1539283/



The cup:
https://cliosport.net/attachments/b2...5-jpg.1539284/


Fitting the new boot into the old cup, was a massive pain in the nuts, and I’m not confident I did I properly, as if you compress and decompress the driveshaft, you can hear air coming out the cup. It’s not air tight. Is it supposed to be? If so, I really can’t figure out how to do it. It’s all the way in, and I used a punch and hammer to replicate how it looked before:

https://cliosport.net/attachments/6f...3-jpg.1539285/



Many thanks,
Bruno Andrade

You'll be fine. There are no moving parts in that section. Just grease it up I think and job done.