Jo Dog / Single Axle Jeep

Really?

 

Yep really.

 

I would never have guessed that - having no experience with them

 

Ron mentioned 79500 less cwt, stock, and bucket. Your 93000 including stick makes sense then - the stick weighing 13500 seems plausible.

 

We moved maybe 10 from the Victoria plant this year to Cali and they were all with in a 1000 pounds of that 79500 number. The 336s vary by quite a bit depending on set up.

The 988s coming from Decatur have a huge range depending on config - as light as 107k and some as much a 127k or there abouts

 

Yep seems right, mine number is based on the Cat Scale so I figure it’s close to right.

 

I’ve moved several 988’s but never had a chance to weigh one. Last one I moved was a pain because it has caught fire, interesting story there.

 

If you have a true 95" swing on the gooseneck it "could" work.
My Fontaine is supposed to be 102" swing without the flip neck. (My tape measures it as only 98") My set up splits weight bang on perfect for me with 12 on the steer 40 drives 20 Jeep.
I redid the King Pin when I got the Jeep and shallowed it up a bit. I wanted an exact 10" spread for the 3 axle group, with the truck 5th wheel set to get 12 on the steer.
It was a geometry headache to figure out at first.
With a neck that short you will need to keep the Jeep as short as possible to the truck for starters. Set the way mine is the truck flaps will just clear the spring hangers on the Jeep. If I take the flaps off I can slide up 6" or so before the rear drive tires will kiss.

Mine goes like this:
With 40k on drives, truck 5th wheel needs to be 9" forward from center of drive axles for 12k on steer. ( With your wheelbase I bet your closer to being centered)

Jeep then needed to be 103" from kingpin to axle to get a 10' group spread.
(You might want something around 98"-100". Even shorter depending on the truck 5th wheel distance)

To get the weight to split right I typically run the main trailer kingpin 37" to 40" behind the Jeep's.
At 37" I'm using every last inch of swing on the trailer neck without using the flip neck. (98" the way I measure it.)
One word of caution. On a Jeep this short, a little bit of 5th wheel slide moves a tremendous amount of weight around. If you run out of trailer neck you will bury the Jeep axle before you load up the drives. And states that aren't used to seeing this setup will spit weight you to check.

Mine weights roughly 4,400# near as I can tell.
So far it's worked out good for me with a 244" truck. Just a fuz under 75' overall on 7. And under 90' as a 3+1.

I'm kinda in the same boat as you. Can't have a true 3 axle heavy spec truck. I need to stay as a tandem 244" or less for Canada. And need to be as light as possible for grain hopper and general open deck work.

 

Thank, Old Iron. I pulled my build sheet on the trailer and it says "95 inch swing clearance. $295.00 option". But I haven't measured it myself yet; I'm not even sure what I'm supposed to be measuring.

Using the measurements from the drawing on the Nuttall website of their jeep, I made a little diagram on a piece of paper to try to get this in my mind. If my fifth wheel is centered on the tandems, that would be 27" from the front drive axle center, right? Add the Nuttall measurement of 96" from the jeep kingpin to the center of the jeep axle, and the axle grouping is 123". Not sure what that tells me.

Once I get the empty weights and HH does the calculations, I'll proceed with talking to a manufacturer about building one to my specs. Or, I'll just keep pounding the bucket pins out every time I need to move the 350 and forget about any heavy hauling for pay in the off-season. That's probably the best option anyway, although I need something to do when it's too wet to work and it might make enough to justify owning this nice truck.

 

Swing is measured from the kingpin to the closest part of the gooseneck.

The first step is knowing where the 5th wheel needs to be to load the steer axle. That is specific to YOUR truck.
Get your drives loaded up to 40k and play with the 5th wheel at a cat scale till you get whatever you want on the steer.
Write down the measurement.

I wanted a 10'+ spread on the tridem to be able to permit more weight in Canada and a few other states.
With your short trailer neck, your going to want to keep the Jeep as short as possible so you can get enough weight forward on the truck.

Once you figure out the 5th wheel placement, Have someone hold the dummy end of a tape on top the 5th wheel jaws. Measure to the rear of the truck and swing it side to side as if it was a trailer. Find the minimum amount of trailer swing you would need before hitting the truck tires or mudflaps on a corner. Give yourself a few inches extra.

Then it's simple math. I need x amount of distance between the Jeep's closest contact point and the kingpin.
Once you know the Jeep king pin to axle measurement. And a rough guess on how much the thing weights on the rear axle. You can figure out where exactly the Jeep 5th wheel needs to be.
And if it'll work with your 95" swing trailer or not.