Can’t find any part number on the internet about my 8.75 742 case gears

dustyaman said
There is a section on the gear where someone scratched out something that might have been the gear ratio but this is all I have to go on. Thanks for the help In advance.

Count the number of teeth on the pinion, count the number of teeth on the ring gear.

Divide the number from the ring gear by the number from the pinion.

Gear ratio check