RubiSc0tt
Well-Known Member
- First Name
- Scott
- Joined
- Jun 12, 2018
- Threads
- 56
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- 1,357
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- 1,689
- Location
- Upstate NY
- Vehicle(s)
- 2019 JLUR in Punk'n Orange
- Build Thread
- Link
- Occupation
- Turn Wrenches/ Write code
- Thread starter
- #1
While we wait for pricing and details on the 392 Rubi I figured maybe we could start a discussion on this. It's something I've started asking myself (YES, AGAIN).
Before we start, let's set some ground rules for the thread (if possible):
-Info/discussion only for a 6.4L Hemi Swap with a manual transmission. This isn't a thread to debate LS vs. Hemi, 5.7 vs. 6.4, Manual vs. Auto, Turbo 6 vs. Supercharger vs. 6.4L, and not really geared toward doing a hellcat swap, either.
-I realize there are shops out there, however- I'm looking at a scenario where one would be doing most of the work themselves, in their garage, in the most basic and achievable way possible. This is the research, gathering of parts that would fit the application, and any sort of hang ups that you may encounter.
-Not only looking to find out the COST of the options, but what possibilities are out there for anyone else considering this to build their current JL into something similar to the 392, just with a manual transmission
With that out of the way, here it is:
How would one go about swapping a 6.4LHemi V8 into a JLR/JLUR, with a manual transmission behind it?
My JL is a daily driver that I take wheeling on the weekends and for family road trips. Ideally I'd run 37's and a 2-3" lift. I keep a pretty light foot on the street and the trail (mostly a crawler), but I do like running difficult trails in the Northeast. Any sort of full throttle hijinx would be minimal.
I've been doing some of my own research (BECAUSE REASONS. FOR SCIENCE). If I wanted V8 power, and a manual transmission, it looks like the route that makes the most sense to me would be:
-Buy a Donor engine off ebay (Lots of 6.4's w/ start up videos to verify from online Auto wrecking yards)
-Buy a kit from Dakota Customs (I realize these are for Auto Trans, but for this application you'd be using all the parts for relocation of stuff in the engine bay)
-Buy a manual transmission (would likely need 600hp rating)
-Exhaust needed
-Upgrade to 1 piece driveshafts
-Upgrade to Chromoly axle shafts and forged gears front/ rear.
Engine options: most 6.4L's I've found are out of Chargers/ Challengers, with a few GC SRT's and PowerWagon options out there. The mileage ranges from 7k-50+k. Pricing is fairly consistent within the $8-9K+ shipping range and most of them offer Youtube verified start up vids, with a warranty from the supplier.
Manual Transmission options: So far, I've found only a few off road oriented manual transmission options:
Getrag 238- Apparently these are getting rarer, because they've been discontinued?
TR4050- 5 speed, but seems like a good option
TR6060 (4x4)- I've been told the regular TR6060 has terrible ratios. I was not able to confirm on the 4x4 version I found as they weren't listed but that doesn't exactly leave me hopeful.
NV4500- I've been told this will not fit. I do not know why, though.
Would anything be needed to make the Manual trans work with the V8 if it was from a manual car?
Would the axle shafts/ gears hold up to Hemi power with reasonable driving?
Would any sort of frame upgrades need to be made? they did this on the 392 but I do not recall seeing it mentioned on any Hemi Swapped JL's.
Has anyone already done this? If so, please share. I know America's Most Wanted 4x4 mentioned they did a JT 6.4 Swap with a Manual trans a few months ago on the Truck show Podcast, but I haven't seen or heard any additional info, so I'd guess they're still testing?
Anyway, discuss.
Before we start, let's set some ground rules for the thread (if possible):
-Info/discussion only for a 6.4L Hemi Swap with a manual transmission. This isn't a thread to debate LS vs. Hemi, 5.7 vs. 6.4, Manual vs. Auto, Turbo 6 vs. Supercharger vs. 6.4L, and not really geared toward doing a hellcat swap, either.
-I realize there are shops out there, however- I'm looking at a scenario where one would be doing most of the work themselves, in their garage, in the most basic and achievable way possible. This is the research, gathering of parts that would fit the application, and any sort of hang ups that you may encounter.
-Not only looking to find out the COST of the options, but what possibilities are out there for anyone else considering this to build their current JL into something similar to the 392, just with a manual transmission
With that out of the way, here it is:
How would one go about swapping a 6.4LHemi V8 into a JLR/JLUR, with a manual transmission behind it?
My JL is a daily driver that I take wheeling on the weekends and for family road trips. Ideally I'd run 37's and a 2-3" lift. I keep a pretty light foot on the street and the trail (mostly a crawler), but I do like running difficult trails in the Northeast. Any sort of full throttle hijinx would be minimal.
I've been doing some of my own research (BECAUSE REASONS. FOR SCIENCE). If I wanted V8 power, and a manual transmission, it looks like the route that makes the most sense to me would be:
-Buy a Donor engine off ebay (Lots of 6.4's w/ start up videos to verify from online Auto wrecking yards)
-Buy a kit from Dakota Customs (I realize these are for Auto Trans, but for this application you'd be using all the parts for relocation of stuff in the engine bay)
-Buy a manual transmission (would likely need 600hp rating)
-Exhaust needed
-Upgrade to 1 piece driveshafts
-Upgrade to Chromoly axle shafts and forged gears front/ rear.
Engine options: most 6.4L's I've found are out of Chargers/ Challengers, with a few GC SRT's and PowerWagon options out there. The mileage ranges from 7k-50+k. Pricing is fairly consistent within the $8-9K+ shipping range and most of them offer Youtube verified start up vids, with a warranty from the supplier.
Manual Transmission options: So far, I've found only a few off road oriented manual transmission options:
Getrag 238- Apparently these are getting rarer, because they've been discontinued?
TR4050- 5 speed, but seems like a good option
TR6060 (4x4)- I've been told the regular TR6060 has terrible ratios. I was not able to confirm on the 4x4 version I found as they weren't listed but that doesn't exactly leave me hopeful.
NV4500- I've been told this will not fit. I do not know why, though.
Would anything be needed to make the Manual trans work with the V8 if it was from a manual car?
Would the axle shafts/ gears hold up to Hemi power with reasonable driving?
Would any sort of frame upgrades need to be made? they did this on the 392 but I do not recall seeing it mentioned on any Hemi Swapped JL's.
Has anyone already done this? If so, please share. I know America's Most Wanted 4x4 mentioned they did a JT 6.4 Swap with a Manual trans a few months ago on the Truck show Podcast, but I haven't seen or heard any additional info, so I'd guess they're still testing?
Anyway, discuss.
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