Author Topic: Cummin's Diesel Jeep  (Read 3943 times)

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Offline Jeffy

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Cummin's Diesel Jeep
« on: October 09, 2005, 07:15:30 PM »
Vehicle Description

JEEP COLECTORS ! VERY RARE US POSTAL JEEP CJ WITH A CUMMINS 4B 3.9 LITER DIESEL ENGINE ! Back in the late 80's early 90's the US Postal service only had a limited few of thier Jeeps sent out and rebuilt with Cummins Diesels. They used the orignal frame and rear end. Installed a new fiberglass body, new engine and new TH350 transmission. This Jeep is fun to drive @  40+ miles per gallon ! I have lowered the reserve to what you could part this Jeep out for ! So you can't get loose !
 
I have 4BT Cummins engines if your looking to repower your gas hog !



Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

jeepfourlow

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Cummin's Diesel Jeep
« Reply #1 on: October 09, 2005, 08:08:50 PM »
will someone buy it for me?

Offline jagular7

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Cummin's Diesel Jeep
« Reply #2 on: May 30, 2006, 12:39:55 PM »
Here is a 4BT up for auction in KS, ends 6/10.

http://www.purplewaveauction.net/cgi-bin/mnlist.cgi?purple16/3155
Jagular7
97 SE - Rubbered and locked for fun
94 SE - stock, collecting parts for 37s

Offline Jeffy

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Cummin's Diesel Jeep
« Reply #3 on: May 30, 2006, 01:32:02 PM »
Nice little engine.  ALthough they are TALL.  I wish they were easier to swap in CA.  Diesel's aren't smogged yet.
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

YJmechanic

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diesal
« Reply #4 on: May 30, 2006, 03:31:18 PM »
what does the swap  need?  I want to go diesal when I am done with my gas.  I think it would be great for wheeling if it is not a crazy swap.

Offline Jeffy

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Cummin's Diesel Jeep
« Reply #5 on: May 30, 2006, 03:50:51 PM »
Basically a complete drivetrain upgrade.

The engine only makes around 105hp but has something like 265lft-lbs.  You can use a 4-speed GM transmission to it.  Probably a 4L80e.  Although a TH400 would also work.  NV4500 will also work.

Then you'll need to upgrade the rear axle for sure.  You will also want to upgrade the transfer case.  A minimum would be a HD output shaft.  A better option would be to use a 241, 205 or a Atlas/Stak.  You'd also want to upgrade the front axle while you're at it.  You could get away with the D30 but it would be your weakest point.

Oh and like I said, the engine is tall.  You'll need a body lift and still might have to cut a hole in the hood.
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Erik

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Cummin's Diesel Jeep
« Reply #6 on: May 30, 2006, 09:19:56 PM »
there was a 93 yj on ebay at $15k a few days ago with that swap... professionally done and 50 state legal.  very clean jeep... absolutely gorgeous

Offline Jeffy

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Cummin's Diesel Jeep
« Reply #7 on: May 30, 2006, 09:29:09 PM »
Quote from: "Erik"
there was a 93 yj on ebay at $15k a few days ago with that swap... professionally done and 50 state legal.  very clean jeep... absolutely gorgeous


That's what started this thread.  The auction was removed though.
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Erik

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Cummin's Diesel Jeep
« Reply #8 on: May 30, 2006, 10:19:03 PM »
guess he realized he wasn't going to get near half of the $50k he invested in the jeep....

sharpxmen

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Cummin's Diesel Jeep
« Reply #9 on: May 30, 2006, 11:12:46 PM »
i wish the pics were still there  :(

Offline Mozman68

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Cummin's Diesel Jeep
« Reply #10 on: June 02, 2006, 06:49:22 AM »
Quote from: "sharpxmen"
i wish the pics were still there  :(


It was okay...there is such a thing as TOO many mods...and that Cummins Jeep had too many.

Isn't there a real issue with the power to weight ratio with that engine in a Jeep??  It's real heavy, isn't it??
2009 Audi S5....what....its 4wd...sort of....

Offline Jeffy

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Cummin's Diesel Jeep
« Reply #11 on: June 02, 2006, 01:19:11 PM »
The 4BT weighs around 680-725 lbs dry. :shock:
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."