4.111 ring gear and pinion for the later type 115mm ID R180 differentials
The later type diffs usually had a big K in the top of the case
It could be used in an earlier 110mm ID diff, but you would have to make, or have someone make, a custom spacer sleeve so that the center section would fit tight inside of the ring gear
The ring gear bolts alone will not hold it together if the center section is not tight in the ring gear
Uses 10mm ring gear bolts
The markings of 37:9 indicate the 4.111:1 ratio
The reddish brown colored stuff on the teeth is from where they measured the tooth engagement at the factory
This NOS Genuine Nissan gear set is NLA from Nissan
WARNING ABOUT DIFFERENTIAL GEARS:
BUYING THIS PART SHALL INDICATE THAT YOU HAVE READ AND UNDERSTAND THE FOLLOWING:
- NISSAN AND DATSUN DIFFERENTIAL GEARS ARE NOT DROP-IN ITEMS.
INSTALLATION IS NOT STRAIGHTFORWARD AND IT IS NOT EASY.
ONLY A PERSON SPECIFICALLY TRAINED, SKILLED, AND EXPERIENCED WITH NISSAN AND DATSUN DIFFERENTIALS SHOULD ATTEMPT INSTALLATION.
THERE ARE SPECIAL TOOLS AND PARTS REQUIRED TO DO THIS JOB.
JUST BECAUSE SOMEONE HAS VAST EXPERIENCE BUILDING OTHER KINDS OF DIFFS DOES NOT MEAN THAT THEY SHOULD BUILD A DATSUN OR NISSAN DIFF.
- I HAVE SEEN MANY A DATSUN DIFF DESTROYED BY PEOPLE WHO WERE EXPERTS ON BUILDING OTHER KINDS OF DIFFS.
MAKE SURE WHOEVER YOU CHOOSE TO DO THE JOB HAS DONE DATSUN DIFFS SUCESSFULLY BEFORE.
ASK IF YOU CAN SPEAK TO SOME OF THEIR SATISFIED CUSTOMERS. IF THEY ARE LEGIT, THEY WILL NOT MIND.
BUYING THIS PART SHALL INDICATE THAT YOU HAVE READ AND UNDERSTAND THE ABOVE