curious about "other number" on gear tag

[scorpio_vette]

i just found a cherokee Dana44 in a local junkyard today and pulled it for $150. i got home and started cleaning the tag to see what it had, and it has 3.54 gears. but i was curious. i've never really worried about the other numbers on the tag, but what do they really mean.


this is what it says on the tag

8953005003
3.54 46-13


any ideas??? i searched on google for quite a while, but couldn't find any sites explaining or decoding diff tags. i know the 3.54 is the gear ratio, but what about the other numbers???

[Menzenski]

46-13 would seem to be the number of teeth on the ring and pinion (46/13 = 3.538). I'm guessing the top number is a serial number of some sort.

[Matthew Currie]

46 - 13 = teeth on ring and pinion to give ratio of 3.538:1?

[scorpio_vette]

interesting. didn't even think about that duh...LOL

thanks. i kinda figured the top looked like a serial number since it was so long, but thought i'd ask.

[carnuck]

The D44s only came with (3.07 in '87) or 3.55 in XJs from the factory. MJs could have 3.73, but only with 4 cyl 5 speed.

[Menzenski]

46-13 would seem to be the number of teeth on the ring and pinion (46/13 = 3.538).
I checked my FSM and that is indeed the case.

[jneary]

the first number is the part number for the assembly if even available. a year or 2 later, chrysler dropped the first 2 numbers, so the new number would be 5300 5003