You can also switch to an AE slipper like the ones used onB/T4-B/T6. They fit the Losi shaft just fine. Keep your Losi lock nut that is 4-40. You can run your old Losi spring and spring adapter or the AE ones.

AE #'s

7485 Slipper hub. You will need two.
9603 Slipper pad. Also two.
9739 Slipper Spring
91423 Adapter (check fit, B/T6 uses a M4 nut not 4-40)

I use this on my Losi and TRX cars when I can't get the Losi parts I want.

Camber links can be had as RPM

Longs-http://www.rpmrcproducts.com/shop/suspension-accessories/long-shank-rod-ends-12-4-40-black/

Shorts-http://www.rpmrcproducts.com/shop/suspension-accessories/heavy-duty-rod-ends-12-4-40-black/

Replace them by Axle. I.E. Do all the fronts at one time and same for the rears. They are not exactly the same size as the Losi ones.

I have seen XX parts at https://www.losipartshouse.com/default.asp It has been a long time so try Emailing them to see if they have anything left.

I have had some luck with XXX parts fitting. P.M. me for info because it a long list for how too.

Also, the Duratrax Evader was a near copy of the XX's. some suspension parts cross. Kind of at least. Duratrax Downloads

I also have a small parts cash but...That isn't going to be cheap. I need them too.

P.S. If you end up not wanting the Hydo-Drive anymore P.M. me. I'd be glad to adopt it and give it a good home.

PM if you need any help, I'd be glad too.