The more I use Quadra Drive, the more I love it!! - JeepForum.com
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post #1 of 27 Old 03-30-2019, 11:55 AM Thread Starter
Photoweborama
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The more I use Quadra Drive, the more I love it!!

I was going to do a couple of videos, but my iPhone switched it photo mode, so I just got only stills...

Went up a hill in AWD and when I hit a bump, the front wheels hit it, the rear slipped and the fronts kicked in and pulled me over it...

Same hill in 4WD to compare.... hit same bump. Front wheels spun, slid off the bump to the right, then slammed me down hard on the bump on the transfer case skid plate.

Hit so hard, my golden retriever freaked out and jumped in the back seat from the cargo area... then littered the the entire back seat with gold fur...

The only down fall is no low range in AWD...


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post #2 of 27 Old 03-30-2019, 12:09 PM
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Photo, the only difference in a Quadra drive between full time (AWD) and part time (4LOW) is the t case gear ratio. The axles and diffs work the same. You probably just hit it a little slower in LOW or a little different angle or something so it reacted a little different.

I've seen videos of the Quadradrive in action though it does work well from what I've seen and from all accounts. Swap in a 242 and you'll have more options and control of the 4x4 system. Grabbing some Vari Lok axles like you have from a JY is something I'm contemplating.
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post #3 of 27 Old 03-30-2019, 12:24 PM Thread Starter
Photoweborama
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Originally Posted by LuthWJ77 View Post
Photo, the only difference in a Quadra drive between full time (AWD) and part time (4LOW) is the t case gear ratio. The axles and diffs work the same. You probably just hit it a little slower in LOW or a little different angle or something so it reacted a little different.



I've seen videos of the Quadradrive in action though it does work well from what I've seen and from all accounts. Swap in a 242 and you'll have more options and control of the 4x4 system. Grabbing some Vari Lok axles like you have from a JY is something I'm contemplating.


Actually, you may be right. In AWD I had the transmission in low, and when in 4WD, I had the transmission also in low.

I wonder if anyone knows the equivalent of AWD transmission low and 4WD and transmission D, 2, or 1?


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post #4 of 27 Old 03-31-2019, 09:44 PM
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Quote:
Originally Posted by LuthWJ77 View Post
Photo, the only difference in a Quadra drive between full time (AWD) and part time (4LOW) is the t case gear ratio. The axles and diffs work the same. You probably just hit it a little slower in LOW or a little different angle or something so it reacted a little different.

I've seen videos of the Quadradrive in action though it does work well from what I've seen and from all accounts. Swap in a 242 and you'll have more options and control of the 4x4 system. Grabbing some Vari Lok axles like you have from a JY is something I'm contemplating.
Transfer case gear ratio isn't the only difference between AWD and 4LOW. When the 247 transfer case is in 4LOW, the transfer case is locked which means power is being sent to both front and rear the entire time. The AWD mode only sends power to the rear wheels until they slip and then sends power to the front.

So in my case, where a previous owner put the wrong fluid into the transfer case, my 247 only works as RWD when in AWD. Since 4LOW locks the transfer case, it works properly in 4LOW. Currently rebuilding a 1998 242D to swap in.
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post #5 of 27 Old 03-31-2019, 10:32 PM Thread Starter
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Originally Posted by Oktavius View Post
So in my case, where a previous owner put the wrong fluid into the transfer case, my 247 only works as RWD when in AWD. Since 4LOW locks the transfer case, it works properly in 4LOW. Currently rebuilding a 1998 242D to swap in.

I would assume they put ATF+4 in there... and everyone keeps saying it wonít hurt the 247... I had the wrong stuff in there only a week, and itís never been the same. Oh, it works great! AWD is fantastic, but it whines like crazy now. When I drive on the highway for awhile the whining really starts to drive you crazy!

Took it out today since it was such a nice day... but they graded the entire off road park, so nothing even required more than two wheel drive...

In 4WD, I still have a degree of AWD type of control because of the front and rear Vari-Loc axles... Iím not sure how to test them to see if they work right, but I just had the front rebuilt about three months ago, so Iíll pretty sure it works right.

I can tell you the Quadra Drive AWD system is phenomenal in thick mud. It just kept going and going and going. And I have street tires on it. They packed all up like slicks. I even stopped and took off again without any problem!

My kid, with his 4.5Ē lifted XJ and M&S tires was blown away. He thought Iíd get stuck as soon as I hit the mud!


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post #6 of 27 Old 04-01-2019, 05:57 AM
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Quote:
Originally Posted by Photoweborama View Post
I would assume they put ATF+4 in there... and everyone keeps saying it wonít hurt the 247... I had the wrong stuff in there only a week, and itís never been the same. Oh, it works great! AWD is fantastic, but it whines like crazy now. When I drive on the highway for awhile the whining really starts to drive you crazy!
Previous owner said he used gear oil and limited slip additive.

Quote:
Took it out today since it was such a nice day... but they graded the entire off road park, so nothing even required more than two wheel drive...

In 4WD, I still have a degree of AWD type of control because of the front and rear Vari-Loc axles... Iím not sure how to test them to see if they work right, but I just had the front rebuilt about three months ago, so Iíll pretty sure it works right.
Easiest way to check if they work is to put the axle up on jackstands, spin one wheel quickly and the other wheel should lock and start rotating the same direction. Either that or find a dirt/sand area and hammer the throttle and watch. Unfortunately there aren't any rebuild kits for the Vari-lok so if it goes bad, have to find another working unit.
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post #7 of 27 Old 04-01-2019, 08:41 AM
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Interesting. The 247 originally came from the factory with ATF in 99. It was only changed because Chrysler was getting complaints about front wheel chirp when making turns. My 2000 Owners Manual says to use ATF because the 2000 manuals were printed in 99. Chrysler came up with their own product as a result of complaints and changed it out at no cost with the factory maintenance check up and made it standard in May of 99 during manufacturing. I'm not saying you should use it in place of the right stuff but It shouldn't have ruined you T Case..
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post #8 of 27 Old 04-01-2019, 11:51 AM Thread Starter
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Iím not saying it ruined my transfer case, just it was dead quiet until the ATF+4 was put in there. It started whining right away on the way home from the shop.

I posted that the mechanic said someone put ďmotor oilĒ in the transfer case, so everyone jumped all over that and told me they put the wrong stuff in there and to have them change it right away.

All I know is ďright stuffĒ, dead quiet. Wrong stuff, whining. Flushed twice with the right stuff, still whining...

Just FYI. I had the shop put the right stuff in that I purchased. I changed it again about a month later, and what came out still looked like ATF. It was still bright red. I changed it again about three months after that and it just had a tiny pink hue to it. Iím pretty sure all traces of the ATF is out now, but it still whines! Drives me nuts! I can feel it right under my legs! Almost canít hear it at on the passenger side..


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post #9 of 27 Old 04-01-2019, 12:21 PM
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What do you mean by "right stuff"? Can you be specific? You said the you "assumed" they put in ATF+4, did they show you the empty containers? The right stuff for the transfer case should only be Moparģ P/N 05016796AB (4 pints)

"If we can really understand the problem, the answer will come out of it, because the answer is not separate from the problem"
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post #10 of 27 Old 04-01-2019, 06:58 PM
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I learned the hard way when I followed my owners manual and put ATF in. I happened to notice a post here about the MOPAR 247 T-Case fluid and that made me research more. The ATF was in more than a few days before I drained and replaced it. The T-Case didnt make any noise with the ATF in and there were no after effects. Maybe I was lucky? But I am glad I figured it out as soon as I did.
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post #11 of 27 Old 04-01-2019, 09:17 PM
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Quote:
Originally Posted by blueseasons View Post
I learned the hard way when I followed my owners manual and put ATF in. I happened to notice a post here about the MOPAR 247 T-Case fluid and that made me research more. The ATF was in more than a few days before I drained and replaced it. The T-Case didnt make any noise with the ATF in and there were no after effects. Maybe I was lucky? But I am glad I figured it out as soon as I did.
As stated earlier in the thread Jeep originally specified ATF+4 in the 247 Quadra Drive transfer case. They switched the recommendation to MOPAR 247 T-Case fluid. That fluid is actually Mobil fluid 424. https://www.summitracing.com/parts/m...0aAh_uEALw_wcB

Last edited by 99SK04GTX; 04-01-2019 at 09:20 PM. Reason: add info
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post #12 of 27 Old 04-01-2019, 09:25 PM
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anybody know just how this tcase works, and, what makes it whine?

99wj,143,000 miles
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post #13 of 27 Old 04-01-2019, 09:35 PM
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Funny, but the more I don't have to use it at all, the more I love it.

2000 Laredo. Now a donor vehicle to my
2002 Laredo. Baloo. Currently a work in progress.
2004 Rocky Mountain Edition. Froggy Bandit. Wife's Daily Driver. PRISTINE! Stock height and may stay that way.....
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post #14 of 27 Old 04-02-2019, 08:26 AM
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Quote:
Originally Posted by 2oldjeeps View Post
anybody know just how this tcase works, and, what makes it whine?
Mine didn't. At least in 4H full time. No wine or anything just didn't engage the front so I swapped in a 242.
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post #15 of 27 Old 04-02-2019, 09:54 AM
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I know I think I was the one who said it.
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