How do i hook up my Quadra Trac? - JeepForum.com
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Unread 09-18-2013, 06:04 AM   #1
bearfoot
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1977 CJ7 
 
Join Date: Sep 2013
Location: Boynton Beach, Florida
Posts: 22
How do i hook up my Quadra Trac?

I just bought a 1977 Cj7 with Quadra Trac. There is vacuum line off my axles about 3" long with bolts in the end of lines. There is no interior so no switch. Can anyone tell me how this all hooks up? And is there a kit to replace the lines and switch. I know nothing about Quadra Trac.

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Unread 09-18-2013, 08:50 AM   #2
jp360cj
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1977 CJ7 
 
Join Date: Oct 2007
Location: Greenville, North Carolina
Posts: 1,754
There is no vacuum line on CJ axles. What you are seeing is probably just the vent line. There is an "emergency mode" for the qtrac that locks it together more like a traditional tcase. I believe this was vacuum actuated.
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77 CJ-7- AMC 360, Edelbrock cam, MC2100, Fenderwells, CJ T18/D20, Chevy D44/EB 9" rear, Trutrac f/r, 4.11, SOA, 1.25 lift shackles, 35x12.50 BFG KM2s, Shackle Reversal
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Unread 09-19-2013, 03:38 AM   #3
bearfoot
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1977 CJ7 
 
Join Date: Sep 2013
Location: Boynton Beach, Florida
Posts: 22
So how do i hook the switch up? I dont even have one and cant seem to find one. That little lever on the floor wont move either.This jeep is my first and it come to me with a empty tub no brakes and a bunch of summit and rugged ridge boxes.
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Unread 09-19-2013, 06:02 AM   #4
jp360cj
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1977 CJ7 
 
Join Date: Oct 2007
Location: Greenville, North Carolina
Posts: 1,754
The switch is normally in the glove box. The shifter its probably for the low range unit.

That's about all I know about the qtrac. Try searching for a factory service manual (fsm) for a 76 -79 CJ. That would be the best source on how to hook up the switch
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77 CJ-7- AMC 360, Edelbrock cam, MC2100, Fenderwells, CJ T18/D20, Chevy D44/EB 9" rear, Trutrac f/r, 4.11, SOA, 1.25 lift shackles, 35x12.50 BFG KM2s, Shackle Reversal
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Unread 09-19-2013, 06:39 AM   #5
bearfoot
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1977 CJ7 
 
Join Date: Sep 2013
Location: Boynton Beach, Florida
Posts: 22
Thanks for the help i see how that all hooks up now.Vac switch in glove box runs the vac switch on the tcase witch moves the shifting fork in diff lock and the lever is high and low range.
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