chain driven x-fer case???? - JeepForum.com
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Unread 08-12-2003, 06:22 PM   #1
Earnhardt rules
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chain driven x-fer case????

Since I am new to all of this, please forgive my ignorance. I know my jeep is fulltime four wheel. It has the little two position handle on the left hand side of the tranny hump. So how does that work?? Is it normal for it to grind back into four high?? do i put it to four low in the usual manner(nuetral, then reversing for a few feet)?? Does anyone have one of these that they use as a daily driver?? What are the pro's and con's?? If there is another thread that relates please feel free to show me the light. All your help is very appreciated.

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Unread 08-12-2003, 06:34 PM   #2
fuzz401
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what year jeep would this be
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1978 cj-7 had since 1979
401 .030 over- full floating flat top pistons
crower solid cam 292 dur .500/.510 lift
turbo 400 tranny 2500 stall
model 20 transfer case
aj delux glass body
4" lift
dana 30 frount
dana 44 rear
4.56 gears
http://img2.photobucket.com/albums/v...slideshow=true
http://photobucket.com/albums/v31/fu...slideshow=true
13.461 @ 92.45 mph on 37" super swampers on 1/4 mile
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Unread 08-12-2003, 09:38 PM   #3
rustyCJ
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since he is posting this in the CJ forum and asking about chain drive transfercase and describing the hi/low lever for the QT i am going to assume he has a 76-79 CJ with QT.

the handle is a hi/low handle. it has a low of 2.57:1, better then the dana 20s 2.03 and almost as good as the dana 300s 2.62.

i used one as a daily driver for almost 2 yrs and would buy one again to use as a daily driver. when shifting from hi to low or low to hi you should be rolling either forward or backwards very slowly to help the gears engage smoothly. by shifting it while in neutral the gears dont mesh together until you shift into gear, causing the grinding.

a lot of people that have never owned or driven a QT jeep will knock it because of hear say and misinformation so be careful what you believe. a lot of them knock the QT case because it is chain driven but drive a YJ with a chain driven case....-shrugs.

the only real cons to them is that you must change the fluid every 3,000 a long with the engine oil and that it takes a special TCL-1 fluid that runs $7 a quart. also it uses an offset rear axle, this kind of hampers your options for upgrading.

a side note, if you take it wheeling, once offroad switch the switch in the glove box to emergency drive. this will lock up the transfercase so both outputs turn at the same speed like a gear driven case. when in normal mode the front and rear outputs can turn at different speeds, one can actually turn while the other doesnt.

sorry for the babbling, just wanted to get some of this info out there before the QT nazis started bashing it saying its a crappy case.
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Unread 08-12-2003, 10:44 PM   #4
fuzz401
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well said
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1978 cj-7 had since 1979
401 .030 over- full floating flat top pistons
crower solid cam 292 dur .500/.510 lift
turbo 400 tranny 2500 stall
model 20 transfer case
aj delux glass body
4" lift
dana 30 frount
dana 44 rear
4.56 gears
http://img2.photobucket.com/albums/v...slideshow=true
http://photobucket.com/albums/v31/fu...slideshow=true
13.461 @ 92.45 mph on 37" super swampers on 1/4 mile
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Unread 08-13-2003, 06:26 PM   #5
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Sorry folks! It is a 77 CJ7. Sorry I forgot to put the year in. Rusty thanks for alot of very useful info. I am not scared of the $7 a quart fluids. I am more concerned about reliability and suh. I am also assuming that a full time four wheel system is a bit worse on the gas mileage. I just bought the thing and now I have to garage it until I get back from another deployment. I just got back from Iraqi freedom in June and now it appears I will head back for another enjoyable stay in our little desert abode. How lovely. At least i will have something to be ready to roll when I return. I am really looking forward to that... thanks to all who have posted and helped...
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Unread 08-13-2003, 07:38 PM   #6
CJeep
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Stay safe, God bless, and, if need be, look into the part time conversion kits for the QT. It'll give you locking front hubs and such, so it will be true rear wheel drive only for the street.
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Unread 08-13-2003, 09:21 PM   #7
fuzz401
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1978 CJ7 
 
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god speed on your return
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1978 cj-7 had since 1979
401 .030 over- full floating flat top pistons
crower solid cam 292 dur .500/.510 lift
turbo 400 tranny 2500 stall
model 20 transfer case
aj delux glass body
4" lift
dana 30 frount
dana 44 rear
4.56 gears
http://img2.photobucket.com/albums/v...slideshow=true
http://photobucket.com/albums/v31/fu...slideshow=true
13.461 @ 92.45 mph on 37" super swampers on 1/4 mile
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Unread 08-14-2003, 04:39 AM   #8
Scrambler82
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Earnhardt rules,

We are behind you guys all the way.

I spent 2 years in Nam so I am with you. (I know I'm old)

"Support the Troop"

Luck dude,
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