ARB carrier bearing confusion

I am about to replace the carrier bearings on the ARB in my C8.25 on a 1998 XJ. I ordered the bearings and some new seal-housing o-rings, but the bearings I received have different ODs.

The races are lm603012 and lm102910. The manual for the locker https://www.arb.com.au/assets/air-lockers/2-RD93.pdf says it uses the lm102910. Parts lists for the 8.25 say it is the other one https://www.ringpinion.com/b2c/ProductDetails.aspx?ProdID=10925. I know some ARB lockers use a special bearing on the side with the seal housing, but the OD should be the same shouldn't it?

I want to have all the right parts before I tear into it. Does anyone know which bearings are correct?

Email Robert. He will be the one to talk to. He is a sponsor here
www.rwkhaussupply.com

Hope this will help

Both bearings were correct. The seal-housing has a recess to hold the smaller bearing.


And the nasty grinding noise is gone.

So the ARB uses smaller carrier bearings than the already undersized stock ones? Anybody have issues with the carrier bearing lifespan?