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Unread 09-16-2013, 02:51 PM   #1
flboy0638
Registered User
1974 J-Series Truck 
 
Join Date: Jan 2011
Location: Tallahassee, florida
Posts: 53
Looking for a part for sale

I am hooking back up my QT emergency drive and I am looking for a part.

1. Does anyone have a "grommit" for sale that sits at the firewall of the truck where all the hoses intersect?

Also, can someone attach a picture or explain where I should get my vacuum source from? I know I can pull from most anywhere but where is the desired spot that a I6 gets its vacuum source from the engine? Please attach a pic if you can.

1974 I6 J10 TH400

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Unread 09-16-2013, 04:14 PM   #2
flboy0638
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1974 J-Series Truck 
 
Join Date: Jan 2011
Location: Tallahassee, florida
Posts: 53
see grommet in pic

http://jubileejeeps.org/quadratrac/q..._diagram_l.jpg
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Unread 09-17-2013, 10:08 PM   #3
flboy0638
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1974 J-Series Truck 
 
Join Date: Jan 2011
Location: Tallahassee, florida
Posts: 53
ghost town
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Unread 09-18-2013, 07:21 AM   #4
vadslram
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1990 YJ Wrangler 
 
Join Date: Jan 2006
Location: VA Beach
Posts: 4,632
Don't know what a QT drive is but what you need is manifold vacum.
Any place after the throttle butterfly will work. I know that my MC2150 has a port at the base that is open to the manifold, and MY '90 intake has a port on it also. I run my axle disco from manifold through a check valve and in line with a storage tank. The tank looks like a black plastic ball with a vacum line going to it. That way even if I lose engine vacum for whatever reason I still have a reserve.
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