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Old 08-15-2018, 10:06 PM   #1 (permalink)
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Dana 44 axle tag confusing

Just picked up on a '73 CJ5 project. No engine...

The rear axle tag is there, but I cant find much info by web search. It has a second tag indicating use Limited Slip lube.

999431
47-11 4.27

4.27 makes sense; 4.27 gears. The extra tag for limited slip lube would have to guess a Trac-Loc or Powr-loc. But the 999431 and 47-11 numbers dont match what I can find on the web.

Any way to tell if it is Trac-Loc or Powr-Loc without pulling the cover?
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Old 08-15-2018, 10:33 PM   #2 (permalink)
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47-11 is pinion and ring tooth count.

Idk what the other ## is, shouldnt be a bom.

Usually is 2 tags, obviously the limited slip lube is its own.
The other is about 1.25" long and has 47-11 over the 4.27.
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Old 08-15-2018, 10:35 PM   #3 (permalink)
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Track lock should have some friction action all the time.
Power lock should be easy to slip until some psi is applied from resistance
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Old 08-16-2018, 09:20 AM   #4 (permalink)
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New vehicle, pull the cover. You never know what is in there vs what the previous owner left on the diff cover bolts
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Old 08-16-2018, 12:11 PM   #5 (permalink)
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I was trying to find out from the axle tags.

I cant do much with it where it is parked now; when I get it up to the garage I can pull the covers. It will eventually need fluid changes at a minimum too.

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New vehicle, pull the cover. You never know what is in there vs what the previous owner left on the diff cover bolts
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Old 08-16-2018, 12:16 PM   #6 (permalink)
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I pulled the tags(unbolted).

The short tag only said to "use limited slip lube"

The longer number on the main tag did not make sense; fom what I could find by web search, the BOM # has a -"number" on the end.

Part of the fun of figuring out a new rig

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47-11 is pinion and ring tooth count.

Idk what the other ## is, shouldnt be a bom.

Usually is 2 tags, obviously the limited slip lube is its own.
The other is about 1.25" long and has 47-11 over the 4.27.
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Old 08-16-2018, 12:16 PM   #7 (permalink)
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Yeah, with an unknown as vital as differential status, I would take the $15 hit for RTV and gear oil to verify it wont explode on me at an inopportune time
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Old 08-16-2018, 07:21 PM   #8 (permalink)
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What are you expecting to find out from the tag? It's a Dana 44 with 4.27 gears, which is exactly what was offered in any '72-75 CJ.

The BOM on the axle tube will tell you exactly every detail about it.
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Old 08-17-2018, 10:57 AM   #9 (permalink)
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Just curious if it has TracLock or PowrLok. It'll be a couple of weeks before I can get it in the garage and remove the cover.

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What are you expecting to find out from the tag? It's a Dana 44 with 4.27 gears, which is exactly what was offered in any '72-75 CJ.

The BOM on the axle tube will tell you exactly every detail about it.
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Old 08-17-2018, 12:03 PM   #10 (permalink)
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The tags don't mean shit after 45 years...especially on a Jeep
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Old 08-17-2018, 03:06 PM   #11 (permalink)
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Very true...

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Originally Posted by KWTMECH View Post
The tags don't mean shit after 45 years...especially on a Jeep
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