Can you replace rod bearings with engine still in car?

I do agree with 67 Dart but in car overhauls have been done forever with good results. I had low oil pressure on my 6.5 diesel in my tool truck and I had new bearings slid in and a new oil pump installed. That was 75,000 miles ago. Still no problems. oops, bad luck....I hope it doesn't blow up tomorrow! LOL

I cant believe you did that. lol