Disco 1 300tdi bigend Bearing replacement

My disco is going to get its 170,000 service next weekend.
And I was thinking about replacing the big end bearings on the con rods while i'm at it .
Do I replace them with standard bearings or +10 Thou (0.25mm). The crankshaft has not been reground its just as is from factory.
Also recommendations for which bearing manufacturer or supplier would be a help.

Does it really need it? Would be interested to hear what those with long term experience if the 300tdi have to say but I always think there's an argument for not fixing something that isn't broken.

If crank is standard, shells need to be standard, no point in changing bigend shells and not mains and thrust washers, and then new oil pump and relief valve

ard-tullaich said:

My disco is going to get its 170,000 service next weekend.
And I was thinking about replacing the big end bearings on the con rods while i'm at it .
Do I replace them with standard bearings or +10 Thou (0.25mm). The crankshaft has not been reground its just as is from factory.
Also recommendations for which bearing manufacturer or supplier would be a help.

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With respect, if you are asking questions like that i suggest you get someone else to do the job.