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Flyin6

Flyin6

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Here are a few pics I took at the shop yesterday. The purple Jeep is getting the final version of this newly created Hemi swap. They built an initial Gladdy a couple of months ago, then (If I have the story correct) modified it with version 2, which is going in as I write this.
The old powerplant is visible on the floor, as is the new motor, a 426 pictured next to the JT on the engine stand.
My JT will be the first production version of this kit, now available to the general public. It differs from the AMW process in several ways. Interestingly, the mechanic who will be doing the conversion was a long-time employee of AMW and really knows his stuff. He said that, unlike the AMW swap, no hammering in the floorpan will occur. Looking at the JT body hanging in the air, the passenger's inner floorpan needs to be heavily cleared to clear the exhaust.
The Exhaust differs in this new installation, which solves that problem. Another problem with the AMW setup concerns the steering. They convert over to a PS hydraulic pump, and that is fine except there is no surge chamber. Therefore, you can create a circumstance where you actually get no steering assist. The answer is to go with the PSC system with a reservoir and surge tank, or just stay with the stock electric over-hydraulic pump. Apparently, you can make a selection here, and I may well go with the factory system, but with the increased pressure modification.
The motor mount system is also vastly different. I looked at the AMW setup, which uses a captured 5.7 hemi truck rubber mount, unlike the setup we enjoy in our gas JTs. My setup will mirror the system we currently have, which is both strong and dampens engine vibrations.
Finally, I think I may select a single-piece rear driveshaft to get rid of the carrier bearing, as per their recommendations.
And last but not least, the High Lift guys, who have done something like 100 Hemi swaps, feel strongly in the 4.88 gear for pretty much all tire sizes the JT uses. 37's to them are akin to roller skates. I think they run a 42 or a 43-inch tire on theirs.
Did I mention, they do bobbed beds as well???

Jeep Gladiator 2022 AEV Gladiator Rubicon build IMG_1087 (Medium)


Jeep Gladiator 2022 AEV Gladiator Rubicon build IMG_1089 (Medium)


Jeep Gladiator 2022 AEV Gladiator Rubicon build IMG_1090 (Medium)


Jeep Gladiator 2022 AEV Gladiator Rubicon build IMG_1097 (Medium)


Jeep Gladiator 2022 AEV Gladiator Rubicon build IMG_1101 (Medium)
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Jteakus

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I vote to keep the build journal in one place, here.
I would also go with the PSC hyd steering.
 

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Well, truth be known, I'm not really doing this for anyone else. I'm just keeping a journal as it were because I like doing it. Besides, all of the kids and angry grill types stay away when they can't get immediate gratification and actually have to do a bit of reading (What's that?) to get the full story.
We’re supposed to read? I just look at all the pretty pictures and make my own dialogue. :angel:
 

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Vroom vroom sounds
 
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Nah USMC knew better than to put me in a cockpit. They did let me hang out the bottom of helos in the monkey harness though!! :rock:
Cool!
BTW I graduated from WTI. Spent almost three months there in Yuma with MAWTS-1. I flew in the CH-53 section with my Chinook. If you look at the pics of class 84-1 the guys with their heads replaced with a white German Shepherd wearing sunglasses were the 4 Army pilots there. We were in a classified unit at the time and weren't allowed to show our faces. Was a great time!
 
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Today's Hemi conversation:

Apparently, the steering type is up in the air. They found the hemi PS pump to be a weak link. They seldom last even 20K miles in this application. They have a better pump, the PSC pump, and the option of the stock electric pump with the Apex pressure mod.

Driveshaft: They will do a two piece, but guarantee that it will fail. They said the 6.4 just has too much torque for a short two piece shaft. Translation: I will be getting a stronger 1-piece rear shaft.

Exhaust: They have a contract with both Magnaflow and MBRP for their conversion. Its close to what we have seen before. dual 3" from the manifolds to a single 3.5" to the back

Front springs: upgrade to the diesel units
 

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I’d go with PSC for the steering. Sounds like a way more KISS option than electrohydraulic, Merlin’s Wizard Sleeve modification with a twist of lemon. Probably easier to rig if it gets messed up out in the rocks as well.

MagnaFlow does good exhaust things, in my opinion. They’re not too far from me and thinking about asking them to do a crazy exhaust that will pass inspection out here.
 

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Today's Hemi conversation:

Apparently, the steering type is up in the air. They found the hemi PS pump to be a weak link. They seldom last even 20K miles in this application. They have a better pump, the PSC pump, and the option of the stock electric pump with the Apex pressure mod.

Driveshaft: They will do a two piece, but guarantee that it will fail. They said the 6.4 just has too much torque for a short two piece shaft. Translation: I will be getting a stronger 1-piece rear shaft.

Exhaust: They have a contract with both Magnaflow and MBRP for their conversion. Its close to what we have seen before. dual 3" from the manifolds to a single 3.5" to the back

Front springs: upgrade to the diesel units
FYI, the stock eco deisel uses a 2 piece drive shaft and generate about the same ft/lbs as a 6.4, a hot tune ecoD dynos at +/-510 ftlbs.

My point is you could use what you have until it breaks if you want to put that 900 bucks toward something else.

A one piece shaft isn't a bad thing if costs don't matter.
 

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Pretty sure it will need custom length DS due to length change.

Don, any thoughts on an Atlas T-case? Save a lot of labor by doing it during the engine conversion.
 

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Pretty sure it will need custom length DS due to length change.

Don, any thoughts on an Atlas T-case? Save a lot of labor by doing it during the engine conversion.
@Flyin6 RESIST THE TEMPTATION!!!!!! You absolutely do NOT need an Atlas 4 Speed transfer case with all its newfangled shifters and super low gearing!!!!


( @Jteakus You hit im with the suggestion and I’ll handle the reverse psychology. He’ll be crawling vertical tall buildings in no time. :like:)
 

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A 2-speed would do it.
Reading about a lot of them getting swapped in to the 392 JL’s
 

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But, No! Don’t do it!
 
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Pretty sure it will need custom length DS due to length change.

Don, any thoughts on an Atlas T-case? Save a lot of labor by doing it during the engine conversion.
I thought about that for about three seconds! The 392 JL crowd installs them to get rid of the factory AWD clutch T-case. I obviously do not have that case, so I'm good.

I'm just going to use the Rubicon case. I hear the trick with the 6.4 Hemi is to crawl in low range, second gear. Pretty clever, me thinks.

No Atlas, I'll never need it, since I am a more moderate guy on the trails. Now, a one-piece drive shaft, that's a different story. I'll very likely select that option. Also, really thinking about the gear ratio change. Either 4.88 or 4.56. With the smaller tire sizes I plan to use, 37-38, possibly a 39, 4.56 would work with that Rubicon T-case.
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