All 870s will be big journl. There should be a 5 stamped in the square box after the 5850 on the right side of the block if its a big journal.
 
58504 is the small journal. They were used in some wheel loaders, backhoes, and excavators.
 
Yesterday's Tractor Forums

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top