CAT D399 NO FURTHER A MYSTERY

I even have a 455D crawler loader/backhoe (initially cousin for the 450C), HLR Powershift transmission with manual clutch. Each and every is about 25 years aged and it has about 6000hrs.The moment I receive the factory service manuals from Cat for the D3 I'm sure the weights are mentioned while in the entrance deal with, I realize They can be to th