65 12 Bolt fill and ID

[kizer]

I'm new to all this so if I ask a dumb question its well all new.

Ok I was looking at the rear end since I've recently ripped all the wood off in the process of taken the bed off so I can prep the frame with POR-15. I decided to take a peak at the rear looking for gear ratio and whatever info I could find. On my Jeep there is a little tag on the cover bolts on the left side.

2 questions:
- Where is the Tag to identify the basics of the rear end. Gear ratio and whatever else.
- I also didn't see a fill plug on the cover so how do you fill it? On my Jeep you pull the cover to empty it and replace and open the fill plug.

I suppose you could use the vent tube looking thing on top, but that's bizarre. Also looking at the rear I'd be surprised if it was ever changed, which can not be good. I normally change my Jeep once a year since I play in literally every terrain.

[steverino66]

As for ID, mine has an alphanumeric code stamped on the back of the passenger axle tube, near the backing plate (you'll have to do some snooping on the web to decode it - mine's a WA+4 digits); the diff fill hole should be a plug on the passenger front side of the center chunk housing.

[kizer]

Hmm, interesting. On my other rig its on the cover its self. I didnt' realize it would be on the axle housing its self.

I'll give it a look see tonight and thanks for the locations.

[Captainfab]

After this many years the gear ratio tag (if there was one, I've not seen one on the '63-'66's) is most likely long gone. I'd suggest just poppin the cover, dump the oil, check the numbers on the ring gear for the ratio, button it up and refill with fresh oil.