M978A4 HEMTT Fueler (Former M983A4 build)

Modeling Subjects Armor
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This is now going to be an M978A4 HEMTT Fueler. It is also the latest version of HEMTT which has a new air-ride suspension, new longer cab from the M1074 PLS, and a new engine area arrangement.

A few reference pics.
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There is no kit nor conversion set (so to speak) for an A4 HEMTT. To that end, most of it will be scratch/converted starting with the Trumpeter M983A2 frame (left over from my M985A2 build) and the rest will be from an Italeri M978A2 kit. I will also add the ProArt Pump Compartment set.

I started with a set that incorrectly has 4 of the rear suspension units, as opposed to two rear and one front, like above, that I got off Shapeways. Additionally, the mounts and air bags on them are too short to give it the proper stance and fit the axles.

https://www.shapeways.com/product/BEQS26APR/1-35-scale-hemtt-a4-suspension-kit-ad-130-full-set?optionId=303371673&li=ostatus

I started with the rear units which are individual cantilever mounts. To fix them, I cut off the bags and axle mount tabs. I then added pieces from the kit that go onto the sides of the axle mounts to extend the mounts for the new rear units. The bags are beads from my wife’s jewelry-making kit.

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On the front, the suspension is anchored in the center and has arms that the axles pivot on from this center point. To replicate them, I used the kit suspension unit cross bars and cut off the springs. I also cut about 1/8 inch from the top of the mount. I also added the end that attaches to the frame to this center section and added a couple pieces that went on the inside of the kit suspension units to finish both sides of the new center mount/pivot point. On either end of these new arms, I cut away the rear section of the Shapeways mounts, just behind where the axle would mount. I added these and the same air bag bead to each end. I may rework the mount to look more like the TM drawing above, but I think it is a good start.
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Here is the full new air-ride suspension.

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More to come on the truck later in the week.

Next up will be the new engine deck. There is one at Shapeways by the same guy who did the suspension units. It looks OK, but he wants over $100 bucks for it. I will be doing it myself using sheet and shaped styrene.

https://www.shapeways.com/product/MBGBHJNG8/1-35-scale-hemtt-a4-piggy-back?optionId=67304373&li=marketplace

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I reworked the front axle mount. I think it looks a lot more like the TM pic now.

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Hello Gino!

I’m a big fan of your conversion builds! Somehow I think the Army trucks don’t get enough attention from the modelling scene. For a long time the only model of the HEMTT was the Italeri offering which is just bad… And then they upgraded the HEMTTs and Trumpeter brought out something more correct - of the old version! The current version is still not represented and you have to do a conversion.

Anyhow, I’ll be watching, good luck with it and have a nice day

Paweł

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Thanks Pawel. Yup, I wish there was a model of the HEMTT A4, then I wouldn’t have to build it. It is fun though. Maybe now that I have built it, Trumpeter will announce one. [:D]

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And a Ukrianian company will beat them to the shelves–with a better version [:D]

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Glad you guys know the details- they all look like a big honkin’ truck to me… [:(DD]

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I doubt it. Trumpeter’s HEMTT A2 kits are great and noone has attemped anything better.

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I’ve gotten back to work on the truck. I have completed the suspension. On the front, I added air brakes, shocks and the steering gear boxes and arms. HEMTTs have two front steering gear boxes, one for each axle. The front one is inside the frame rails ahead of the front axle. The rear one is mounted on the outside of the rails between the two axles.

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On the rear I added shocks and the air brakes.
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Once the suspension was done, I moved to the cab. The A4 cab is longer and has a roof plate where a gun turret can be added. I replicated both of these by adding 1cm to the length and a cut down circle of plastic for the gun ring cover. I also cut down the front of the roof. The A4 doesn’t overhang at the front to make like a brow/sun shield.
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I also added details on the inner roof, and details to the dash to make it look more like an A4. I reworked the center tunnel cover as well.
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I also detailed the hydraulic fluid reservoir with filters on the side and rear, and lip and frame details.
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Next I will move to the side-mounted radiators. I am starting with the louvers from the top intake of a Bradley. I had bought a couple Kinetic M3A3 hulls for the side skirts and other details. I cut the intakes out of them and squared them up. Next I will build up the boxes for them.
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More to come later as I continue the build.

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Looking good. I was a fan of yours around 20 years ago on here when I was M60A3. I have matured some, lol. I still remember your sigline was something like “I am a land acquisition specialist for the world’s only remaining superpower”. I always liked that.

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Thanks. Great tagline, but it was not mine.

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You’re welcome.

Really thought it was you. It’s been awhile.

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I bet it was @Rob Gronovius

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She’s coming along beautifully!

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Thanks Gamera.

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Nice modification’s and skills shown here keep it going!

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Thanks Drums01. Work continues.

I have pretty much completed the A4 engine surround and details around it.

As I showed above, I used Bradley air intake louvers to make the side-mounted radiators. I finished them off with sheet styrene to make the boxes and added details from angle styrene and other detail pieces. I used a couple grab handles left over from something to complete them.

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I made the top flat part over the engine out of sheet styrene and thin styrene rods as stiffeners. You can also see some of the details on the hydraulic tank as well. I added some hoses and a PE mesh circle detail on top of the extended tube. I also made a grab handle out of wire. You can also see on the right side in the first pic a new air intake tube that I made from the kit’s tube and a bent piece of 1/4 inch styrene tube. It is the same diameter as the kit part and matched perfectly.

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On top, I made the holder for the spare tire. It is made out of square stock styrene and sheet styrene with some angle and bolt heads for details. I also added bolts to the spare’s rim. The actual piece hinges out and down to lower the spare tire.

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To the left of the spare tire holder you can see the air cleaner. I took the kit air cleaner drum and turned it sideways, then cut is down to fit on the side fender. I built the top box from sheet styrene and the support from square stock styrene. Again, I detailed it with some bolt heads and smaller parts. The front disk started as a 1/48 aircraft tire, highly modified.

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Here it is mocked up with the cab in place to see how it looks overall. Not too shabby if I do say so myself.

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Next up is continuing with the cab details and then adding the rest of the tractor parts on back.

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Again, you’re making great progress on her! [Y]

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Thanks Gamera. Always great to have you check in.

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Another update. I have detailed the cab, inside and out. I used the Eduard interior PE on it. I used pieces as they fit in the redesigned cab. It is a pretty good set and adds quite a bit of detail.

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I also added support structures to the rear wall and roof.

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On the front, I built the bumper(?) bar from square brass stock, bent to shape. I also added the cages around the lights from sheet and rod styrene.
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I used 3D printed gladhands on it too. They look great.

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Lastly, I cut down the length on the exhaust and added the upper PE cage around it from the Eduard set.

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I am waiting on 3D printed modern marker lights for it and a few other pieces to complete the cab steps. Other than that, construction is done. Now onto painting and detailing the cab interior.

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She’s lookin’ sharp Gino!

I confess I enjoy following other people’s streams because I’m getting so little stuff done myself… [:(]