As stated above, there is a risk in replacing the bearing in situ of:
(A) the bearing not being located properly. Microns out on installation could cause premature failure in due course
(B) causing damage to other components when forces are exerted on them to remove/install the bearing, in directions and in ways they are not designed to withstand
I debated long and hard after buying my 996, and decided on balance to leave well enough alone. The risk of replacing a good bearing seems to outweigh any benefits. Of course if you know your existing bearing is knackered it's a different proposition.
As an aside I though the LN bearing was lived at 4 years/40k miles, so that's all they're guaranteeing it's good for. Strictly it becomes a service item.
Also as an aside, I agree the dual row bearings have been known to fail, but I thought they were obsolete after 98?
(A) the bearing not being located properly. Microns out on installation could cause premature failure in due course
(B) causing damage to other components when forces are exerted on them to remove/install the bearing, in directions and in ways they are not designed to withstand
I debated long and hard after buying my 996, and decided on balance to leave well enough alone. The risk of replacing a good bearing seems to outweigh any benefits. Of course if you know your existing bearing is knackered it's a different proposition.
As an aside I though the LN bearing was lived at 4 years/40k miles, so that's all they're guaranteeing it's good for. Strictly it becomes a service item.
Also as an aside, I agree the dual row bearings have been known to fail, but I thought they were obsolete after 98?