hi
I run a Orion VST2 7.5 and others us similar and they do get hammered, the track has a lot of bumps so there is a lot of shocks going through the whole drive chain.
there are also a good number of SCT210, mine has a VST2 6.5 and is still ok.

neale

on my v2, the hole for the thrust to go through is tight, and the diff lasted 3 meetings (1 indoor polished floor, 2 high grip outdoor) before it felt rough

ive rebuilt the diff (new everything except gear and outdrives) and will see how long it last this time.

in my opinion the diff outdrives are bit weak and do wear quite quick, apparently the b4.1 outdrives fit but need alot of shims for the gearbox.

I thought they were the good cars and are still good. I never had a drivershaft snap just extreme wear issues not so much the 410 but the 210 was horrific.

As for driveshafts supplied damaged that's just down to none existant QC or they aren't checking enough of a batch. The pin cracking is probably down to over hardening of the driveshaft and incorrect machining tolerances when TD revised them.

The outdrive is just unlucky.

Has anyone tried a different driveshaft from a different car such as a B4? I have never measured or compared any others so I don't know if it's possible but has anyone looked for an alternative?