Hey there fellas,
so I have this '91 Sierra 2.0i DOHC 2wd that I built (well, a little bit) for a fun rallye over the Balkan countries in 2016 and now use it as a fun car for drifting in wet/snow conditions and on some closed track wet drifting events for fun - great car for that purpose and I've always been strangely attracted by the Sierra and Scorpios (Gran Mk3) anyways lol.

So, in the front I'm using all poly but the rears are still stock and probably half shot (I know that one of the rear beam mounts has rips). I changed the ripped MT75 gearbox mount in May or sth and now, maybe some few thousand kms later, it's ripped again So that's my question here. Is it usual for them to break that easily under some more heavy usage? Does it have something to do with other mounts (engine mounts looked ok) or bushings that suspend the rear movements or the propshaft intermediate bushing?

Thanks for any inputs & greetz from Austria
Andi