Usethis 392 Project

DOOKEY

Well-Known Member
Rock Sponsor (Level 1)
First Name
Andy
Joined
Mar 26, 2018
Threads
39
Messages
1,715
Reaction score
3,631
Location
Thornton, CO
Website
www.tractionoffroad.com
Vehicle(s)
2019 SG JLUR
Occupation
I make flow formed double beadlocks.
Sooo.... the big question. How do you compare this to your YJ with the V8? More fun? Different fun?
 
OP
OP
Usethis83

Usethis83

Well-Known Member
Joined
Mar 4, 2021
Threads
25
Messages
219
Reaction score
369
Location
Alabama
Vehicle(s)
2021 392 JLUR
Build Thread
Link
Verdict on the mopar sun bonnet, yes it is loud. Super flappy even after a few adjustments. It will be great for trail crawling or quick trip to grovery store. No interstate.
I just love the look of a jeep with half doors and a safari top.
IMG_20211124_194440_161.jpg
 

Monster1926

Well-Known Member
First Name
Steven
Joined
Jul 30, 2021
Threads
3
Messages
565
Reaction score
1,061
Location
Fort Wayne
Vehicle(s)
2021 Silverado 2500HD midnight
Verdict on the mopar sun bonnet, yes it is loud. Super flappy even after a few adjustments. It will be great for trail crawling or quick trip to grovery store. No interstate.
I just love the look of a jeep with half doors and a safari top.
IMG_20211124_194440_161.jpg
Any rubbing or trimming? My 392 is built just waiting for delivery. I’d love to go to 37s right off the lot.
 
OP
OP
Usethis83

Usethis83

Well-Known Member
Joined
Mar 4, 2021
Threads
25
Messages
219
Reaction score
369
Location
Alabama
Vehicle(s)
2021 392 JLUR
Build Thread
Link
Any rubbing or trimming? My 392 is built just waiting for delivery. I’d love to go to 37s right off the lot.
Works fine for street driving with stubby bumpers, but it will definetly rub off road. I am trying to decide what path to take next. I really like the factory suspension, so I thought about new inner and outer fenders and extend the bumps. (I have always like lcg and flat links) or do the predictable 3.5 metal cloak route. Not sure.
 
OP
OP
Usethis83

Usethis83

Well-Known Member
Joined
Mar 4, 2021
Threads
25
Messages
219
Reaction score
369
Location
Alabama
Vehicle(s)
2021 392 JLUR
Build Thread
Link
I made a decision to add a little bit of lift, but keep as low as possible, but just enough let the 37s move freely. This is what I came up with. 2" teraflex front, mopar 24.25" LCAs, 1.5" teraflex rear spacers and 2" teraflex bumps all around. I wanted to keep the stock shocks atleast until i can see how this geometry rides. If i like it, i plan to get some accutuned foxes. I really liked the factory ride and wanted to preserve as much of that as possible. I did not want serviceable joints or poly joints and did not want to replace the front driveline.

Front going in
20220129_101804.jpg

Spring bow, not a problem. Worry #1 gone
20220129_103825.jpg

20220129_103831.jpg
 
OP
OP
Usethis83

Usethis83

Well-Known Member
Joined
Mar 4, 2021
Threads
25
Messages
219
Reaction score
369
Location
Alabama
Vehicle(s)
2021 392 JLUR
Build Thread
Link
After compressing the spring i realized i could not drive it without shock extensions, lest i damage the shocks immediately. So i ordered some teraflex extensions for the time being.
 
OP
OP
Usethis83

Usethis83

Well-Known Member
Joined
Mar 4, 2021
Threads
25
Messages
219
Reaction score
369
Location
Alabama
Vehicle(s)
2021 392 JLUR
Build Thread
Link
Front is a snap, but the rear.....oh the rear. Teraflex manufactures really well thought out products(shoutout to teraflex). But these rear upper spacers when you are on the ground with floor jacks and no lift........well, you gotta want that. The 392 has a lit more going on underneath compared to my previous 2.0s undercarriage. I invented new cusswords during the install of those. But once they are in, the result is superior.
20220129_143629.jpg

20220129_151208.jpg

The rear bump design is very clever
20220129_151201.jpg
 
OP
OP
Usethis83

Usethis83

Well-Known Member
Joined
Mar 4, 2021
Threads
25
Messages
219
Reaction score
369
Location
Alabama
Vehicle(s)
2021 392 JLUR
Build Thread
Link
I have lifted a couple jls and a jt, here are some odd tips that may help.
On the rear i find it much easier to disconnect the e brake cable from the rotors and the axle tube mounts and i did not have to loosen any control arm bolts this way. The axle can drop far enough out for mopar springs or this 2inch combo. Way faster than having to loosen and retorque 8 bolts on the floor.
20220129_125936.jpg

20220129_125941.jpg


Anyone who has torqued the 190 ft lbs on the jl and jt LCAs know that can be very difficult on the floor to get the right leverage and hold 2 wrenches try this on the inner 24 and you can bow up on the 21 on the other side.
20220130_110750.jpg
 
OP
OP
Usethis83

Usethis83

Well-Known Member
Joined
Mar 4, 2021
Threads
25
Messages
219
Reaction score
369
Location
Alabama
Vehicle(s)
2021 392 JLUR
Build Thread
Link
I wont have good after pics until the extensions come in and i can drive it. Here is what i have now. I will post some before and after when i can, as that is what everyone wants to see.
20220129_155526.jpg

20220129_160614.jpg

In height 392 with these spacers is really close as my 2.0 jl with the mopar kit was. Just right for me.
20210725_144930.jpg
 
OP
OP
Usethis83

Usethis83

Well-Known Member
Joined
Mar 4, 2021
Threads
25
Messages
219
Reaction score
369
Location
Alabama
Vehicle(s)
2021 392 JLUR
Build Thread
Link
Couple observations with the 392s "unique" suspension geometry as it pertains to this setup.
Are the 392s LCAs longer than rubicon? No. I swapped for the longer 24.25 LCAs from the mopar kit.

Surely with taller springs on the 392 jeep lengthened the track bar compared to the regular rubicon.........Not sure. My post lift differences we 5/16 out on rear axle woth 1.5 spacer and 7/8 on the front axles with 2" spacers. We will see how it rides, but my ocd might just get adjustable track bars. We will see. Fyi my black jl was similar out and drove fine.
Sway bar angle looks acceptable
Factory shocks too short for this combo. Going to use extensions to see if i like the whole setup before plunking down on accutine shocks.

 
Last edited:

Jim Marsh Chrysler Jeep
 
Top