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Unread 02-01-2013, 08:55 AM   #1
smcfar13
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Need quadratrac help!!! and Info

Hi all Im new to the Jeep world and epecially the quadtratrac.

Im looking a trading for a 1977 cj7 with the 304 auto quadratrac system. Ive searched till iwas blue in the face.

My queastion is did these jeeps come with front lockable hubs? The one im looking at purchasing has hubs in the front that have "auto and locked" Id like to know if they are factory and how they worked on an AED drive jeep.

It has the 304 turbo 400 quadtratrac with low gear

Thanks in advanced!!

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Unread 02-01-2013, 09:31 AM   #2
timgr
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No locking hubs.

It could have been converted to part-time drive. Then the locking hubs could be added. But never from the factory.

Read the page about Quadratrac at Jubilee Jeeps: http://www.jubileejeeps.org/quadratrac/

Plenty of information on the BW1305/BW1339 out there - use Google.

AED? You mean AWD? It's full-time 4WD from the factory, with the front and rear axles driven all the time.

Low range, not low gear.
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Unread 02-01-2013, 09:36 AM   #3
smcfar13
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Quote:
Originally Posted by timgr View Post
No locking hubs.

It could have been converted to part-time drive. Then the locking hubs could be added. But never from the factory.

Read the page about Quadratrac at Jubilee Jeeps: http://www.jubileejeeps.org/quadratrac/

Plenty of information on the BW1305/BW1339 out there - use Google.

AED? You mean AWD? It's full-time 4WD from the factory, with the front and rear axles driven all the time.

Low range, not low gear.
Awsome thanks. Yes sorry Low range and Full-time Told you I was new LOL.
The hubs only say auto and locked most ive seen have lock and unlock i dont get it. The guy said the "part time kit" was not done on it Im just trying to under stand whay the auto/locked hubs
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Unread 02-01-2013, 10:33 AM   #4
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The ones that say auto/locked are aftermarket auto locking hubs. They would auto lock if a transfer case was put into 4wd. They would need to manually be turned to "lock" if you planned on doing any compression braking (using the engine to slow you down going downhill).

It's odd that they would have been swapped into a Qtrac CJ unless it's been converted to part time.
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Unread 02-01-2013, 11:09 AM   #5
timgr
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If there's no part time conversion installed, you don't want locking hubs of any kind. Some hubs are "auto-locking" where they lock in automatically when the driveshaft turns, and also can be locked solid. Leave them locked, or better yet, remove them and replace with the factory slugs.

If you unlock locking hubs on a Quadratrac Jeep, and switch the glove box control to normal operation (rather than "emergency drive"), you will ruin the transfer case. There are no replacement parts to fix these any more - you'd have to hope you can find enough good used parts to put a working TC together.

You might be lucky, and the TC is permanently stuck in "emergency drive." Then, you could go 2WD using locking hubs. But that's another bone-head scenario.

No locking hubs on a factory Quadratrac. Bad, bad, bad idea. Very dangerous to the car's health.

Ask the owner to demonstrate the car in full-time on pavement, hubs fully locked. And make sure the switch in the glove box works - you should notice 4WD bind-up on pavement with it locked in to "emergency drive," and the binding should go away in normal mode. Always with those dangerous hubs fully locked.

BTW - towing a full-time QT Jeep with two wheels on the ground and two in the air will also ruin the transfer case. Clutches will be worn out, TC killed very dead.
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Unread 02-01-2013, 11:47 AM   #6
Dngrs1
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Ask if the front axle has been replaced or had work on it. I would be wary of different gear ratios 'tween front and rear.
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Unread 02-01-2013, 12:17 PM   #7
smcfar13
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OK thanks guy's for your help it really is awsome!

I wehnt for a ride in it yesturday The hubs we in Auto mode drove fine made a tight corner in the culisac no binding at all. This was a project that was competed a year ago and since the original owner has passed. Im dealling with his son in law now seems to know his stuff and swears up and down his father in law didnt put the "part time " kit in. Also the dash has been redone and there is no Glovebox and I didnt notice an Emergancy lock vacume switch anyware.

Thanks again
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Unread 02-01-2013, 09:26 PM   #8
skizriz
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The auto locking hubs is a weird one.

I run locking hubs on the front of mine with Quadratrac. It's nice having the option of locking the hubs and running normal all wheel drive on the street for slick snowy roads when the extra traction is needed.
Or unlocking the hubs, putting it in E-drive and having only the rear wheels powered under normal conditions.
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Unread 02-02-2013, 09:32 AM   #9
CSP
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Some info on the Lock-o-matic hubs:

http://forums.off-road.com/jeepster-...explained.html

http://www.jeepforum.com/forum/f8/wa...eable-1373754/
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Unread 02-02-2013, 10:42 AM   #10
arg0413
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If you need factory hubs, I got a set I just pulled off mine. I converted my quadratrac to a T18A/D20 setup, and I actually have a heap of good Quadratrac parts.. including E-Drive switches, diaphrams, etc.. You can look on the passengerside underneath your Jeep and you'll see black vacuum lines coming off the T-case, follow them up to the firewall and under the dash to find the E-drive switch. Some people put them on the dash and didn't label them like mine was when I bought it.
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Unread 02-02-2013, 10:43 AM   #11
arg0413
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I'm sorry factory "Lockouts" or "slugs"
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Unread 02-02-2013, 10:54 AM   #12
lucdog
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Quote:
Originally Posted by arg0413
I'm sorry factory "Lockouts" or "slugs"
I'm guessing your talking about "drive flanges" . Which is the correct terminology.
OP, this is a drive flange.

image-4145178650.jpg



image-3135637652.jpg

And are what Quadratrac Jeeps came with from the factory.

Bill
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Unread 02-02-2013, 11:40 AM   #13
arg0413
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No that's not what I'm talking about, a lockout looks like a hub, but it stays locked at all times. That's what is supposed to be on a q-track from factory, I can post a pic when I get home
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Unread 02-02-2013, 01:24 PM   #14
CSP
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A lockout is a locking hub that can either be locked or unlocked. The picture lucdog posted is correct with what came stock on the front of CJs with Qtrac and they are indeed called drive flanges.
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Unread 02-02-2013, 01:50 PM   #15
arg0413
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Yes I'm aware what a drive flange is, but this post is about hubs and I'm pretty sure we can all agree that a Q track jeeps came with hubs that stay stay locked and cannot be unlocked, and as I mentioned before I have the oem pieces that I recently took off that he can have.
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