NEWS PARTS JEEP & 4x4 ATV & UTV

Postal Jeep axle in CJ5?

7804 Views 5 Replies 3 Participants Last post by Dana, Dec 11, 1999

Dana

Discussion Starter · Dec 10, 1999

Anybody know if a postal Jeep (dunno what year yet) rear axle is the same as a CJ5? What about the gear ratios? The AMC20 (3.54) in my 79 CJ5 is on the way out and I've got a line on a couple of DJ's for $200, so it could be a good deal for me. Any other major parts interchangable?

-Dana

When Columbus came to America, there were no taxes, no debts, and no pollution. The women did all the work while the men hunted or fished all day. Ever since then, a bunch of idiotic do-gooders have been trying to "improve" the place.

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010

· #2 · Dec 10, 1999

I installed a 70 dj5a rear axle in my 46 cj2s. The axle is a true dana 44. The main differents is the axle is narrower by couple inches than the stock axle. They say the center line is offset a couple inches but I cannot tell by looking. The axle behind the 4 cly dj5a is 3.73. Some came with lockers from factory.

brownbagg </font color=red>

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035

· #3 · Dec 10, 1999

I have a '78 postal jeep Dana 44 rear axle. it's the exact same width and bolt pattern as the factory "Narrow Track" AMC20 in my '81 CJ-8. The postal jeep 44 has shock mounts that you won't need and the spring pearches are on the top and closer together. i haven't measured to see if the same driveshaft can be used.

also i think all "Postal 44's" have 30-spline, one piece flanged axles with "trac-loc" limited slip diffs. the 4 cylinders came with 3.73's gears and the 6-cylinders came with 3.07's.

3/4tonYJ
http://My Jeep Page

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Dana

Discussion Starter · #4 · Dec 10, 1999

In reply to:

also i think all "Postal 44's" have 30-spline, one piece flanged axles with "trac-loc" limited slip diffs. the 4 cylinders came with 4.10 gears and the 6-cylinders came with 3.07's.

Hmmmm, I guess i'll just hafta check. If it's a 4.1 it'd get me halfway into a desirable gear swap from the 3.54's I have now, just have to get the fronts, but 3.07 is out of the question. Not so crazy about the LSD, though, I used to have a 75 DJ5D and it was awful in the snow.

-Dana

Society is like a stew. If you don't keep it stirred up, you get a lot of scum on top.

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035

· #5 · Dec 10, 1999

My mistake, i said the 4-cylinder postals have 4.10 (i meant to say 3.73), i actuallly own one of these, sorry about that again......

3/4tonYJ
My Jeep Page

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Dana

Discussion Starter · #6 · Dec 11, 1999

DOH! A 4.1 would be a worthwile improvement, but 3.73 wouldn't be worth the trouble of going into the front axle too. Dang.

-Dana

The reason it's always so difficult for Bill Clinton to tell the truth, the whole truth, and nothing but the truth is because it's usually three different stories.

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