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Unread 12-29-2009, 09:11 AM   #1
AMCSportTruck
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Reasearching Build, Project "Jeep J/55" gathering info, photo added

I'm thinking i am going to build myself a J-truck its going to be a diesel 1.25 ton dually 4x4 flat bed.

Battle plan:
Start with a 160hp n 400tq 12V-5.9L + 6 Mod's . . .

1. 3200rpm governor spring.
2. fuel pin.
3. POD injectors.
4. a 12cm wastegated housing.
5. Cold air intake.
6. 4" exhaust.

end up with 275-325hp n 625-675tq 12V-5.9L-Cummins Turbo Diesel
Now back it up with 5spd-OD Manual, 4.10 gear's, and 19.5's

Topped off the a Jeep J-truck body Diamond plate flat bed, on a 89'-93' Ram350 / Ram3500 the old Square bodied leaf spring truck 4x4 short chassie, They came with some heavy duty axle's. . .

Add 4 leaves to each rear stack and add 2leaves to each front stack and shazzam ya got a 16K-LB GVWR truck.

Dodge killed off the Jeep to survive now a Dodge is going to be killed off to keep a Jeep alive.

Wheels:
Rickson Wheel Manufacturing

Tires:

225/70R19.5:
225-70R19.5-OTR-(F) - Retread Tires from TreadWright, Inc.

Rickson Wheel Manufacturing

245/70R19.5:
245-70R19.5-GUARD-DOG-M-T-(G) - Retread Tires from TreadWright, Inc.

Rickson Wheel Manufacturing

I'll either used 1 of the 2 tread wright tires or the Hankook DH01's from Rickson's only bought locally for less money. . .I have to run aggressive tires, i drive off road. . .

That's the battle plan ! what ya think of the build ?

i doub this project J/55. . .

Mike


Last edited by AMCSportTruck; 01-15-2010 at 06:36 PM..
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Unread 12-29-2009, 09:13 AM   #2
NEPAjeep02
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I'm interested
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Unread 12-29-2009, 09:25 AM   #3
AMCSportTruck
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Are you now ? . . . I'm researching all i need to know so far the above posted info is all i have at this point . . .

I been searching on and off for the 1ton 4x4 diesel manual transmission 89'-93' Dodge Cab n chassie, to be the the chassie n drive train.

Now instead of me being limited to trying to find a 74'-76' Jeep J/20 401 V8 4spd, 4.11's, for my tow rig. . .
I have now widened my search to any 1963-1988 J-truck Cab n clip.

Mike
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Unread 12-29-2009, 01:40 PM   #4
NEPAjeep02
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Have you tried your local junkyard? I was snooping around one near me yesterday and quite a few Cummins sitting out there.
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Unread 12-29-2009, 02:39 PM   #5
AMCSportTruck
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Really ? . . . Our junk yards have no diesel's period . . . they auction off them truck's as soon as they come in . . .

I would rather have an operational truck and swap Cab's n bed's onto it, Buy a 89-93 ram dually 4x4 diesel manual trans drive it toss on a set of 19.5's drive it a while get the motor built to spec, by that time it's paid off, then track down a Jeep Cab and try and buy a nice Flat bed, swap the body on to the dually chassie.

I really don't want to buy and engine then a transmission then axles then try and find a whole jeep. to many step's it'll never get built lay around a few years and hauled off for scrap, Which would be a big waste IMO.

Keeping it simple makes it get done I know myself all to well

Plus bank won't lend you money to build a truck, from a pile of parts But they will let you buy an old 1 ton Ram as a "toy Hauler", then build the rest of it I'm doing they call Creative Financing

Mike
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Unread 01-15-2010, 12:17 AM   #6
AMCSportTruck
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Update

1. 89'-93' RAM350 dually 4WD Reg Cab & Standard box is the chassie needed, Ideal a Cab & chassie with the 60" CA or Cab to Axle.

2. drive train will be 12v-5.9L-CTD, Getrag 5spd-OD,4.56 gears & 245/70R19.5 tires.

3. Body 1963-1987 Jeep J-truck Cab & front clip, 7-8ft flat bed with head ache rack.

The whole point or rather my goal of this project is to not cut up a whole or complete FSJ-J truck

Now i contacted J&W Jeeps they have 2 whole cab/clip's one with interior for $1,600 or 1 without interior for $1,400.

I have test dove 3 dodge truck's but it seem the prices are pretty much set at $5,000-$7,500 for 89'-93' Diesel RAM350's 4wd manual trans.

So i started second guessing this build , but a few FSJeepers said the body prices are way to high . . .

The diesel guy's are also saying the ram's are priced way to high . . .

this is the case where do look then ?

I been all over Ebay on craigs list local paper's ECT.

Mike
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Unread 01-15-2010, 06:35 PM   #7
AMCSportTruck
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CAD photo rendering of projected build

Let me introduce the Jeep J-5500:


Mike
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Unread 01-17-2010, 11:58 AM   #8
AMCSportTruck
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Second draft more in theme n scale !

J-5500:


Red paint and 19.5's as the build will be . . .

Mike
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Unread 01-17-2010, 04:28 PM   #9
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Best of luck! This is going to be pretty interesting.
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Unread 01-18-2010, 02:36 AM   #10
AMCSportTruck
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Yup, it's going to be a blast to build i think, I can't wait the get started !

Mike
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Unread 01-19-2010, 10:06 PM   #11
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M715 would have given you 1 1/4 ton to start with
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Unread 01-19-2010, 10:14 PM   #12
AMCSportTruck
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Yes but the M715 would have blown the engines rotating assembly all over the highway trying to keep up

Mike
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Unread 01-23-2010, 05:59 PM   #13
AMCSportTruck
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AMC J-5500:


grab handles removed stacks added . ..

Mike
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Unread 01-31-2011, 11:21 PM   #14
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good start but how about some wrench turning progress?
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Unread 02-01-2011, 01:41 AM   #15
AMCSportTruck
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Truck is simply impossible to build !

Wrecked 2 dually chassies 1 RAM3500 diesel and 1 GM3500HD and 2 J truck bodies, It can be drawn but it can NOT be built.

The RAM chassie I couldn't get the front axle to center in the wheel well. So I removed the 12V-Cummins and got the body setting right couple of test fits with the 19.5s all was good. Then came re fitting the power train everything seemed to interfere with something else. Lost my cool one day the J-truck body RAM chassie n cummins diesel all went to the crusher and was destroyed !

So I spent 3wks thinking then I remembered about the 92'-98' GM-3500HDs those came with 19.5s and heavy GVWs.

The GM chassie was easy to find, bought a second rust free complete J-truck front half body n chassie fit together queit well excpet for the huge wheel well gap from top of tire to bottom of wheel well, chalked it up to missing engine test sat a BBC under hood didn't squat enough. So I bought a 24V cummins diesel got that sat. Into place but still looked ugly but I got driving around anyway.

After trying to run a size bigger tire then another size bigger tire still not looking right. This is when I realized the GM floor pan and Jeep oor sit differently. The Jeep body tho mounted at same hight visually appeared 6" higher because the jeep body sat mid frame rail and the GM sat below. So after trying to lower the body to no avail I crushed it ! ! !

So 2 perfectly good dually 1tons wrecked, 2 rust free J-trucks destroyed, and 2 Cummins diesels wasted I gave up thousands $ in the hole and hundreds of hrs wasted.

Now I didn't try using a Ford Chassie yet ! ? !

But I went another route bought an 82' J/10 Honcho stepside shortbed I'm going to swap J/20 Axles n springs under it drop an AMC-390 under the hood mated to a T-18 with 4.27gears and Run polished SRW 19.5 rims, add a Goose neck ball and heavy duty receiver hitch.

I felt this was a better route instead possibly wasting another 1ton chassie and J-truck body !
Mike
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