NP231 doubler / crawlbox

[Apparition]

Build thread or it didn’t happen….

Nothing happening right now so it’d be a boring build thread.

 

[Gollywomper]

Nothing happening right now so it’d be a boring build thread.

Chop, Chop get to choppin’!!!!!!!

 

[Gollywomper]

The issue of fuel economy with the OPs 3.73 axles was addressed early in the thread. It's likely he should choose the right axle gears before attempting any more complicated driveline swaps, additions, or fabrications. He seems quite concerned about cost. My point is that getting his axle ratios is likely money better spent than screwing around chopping up otherwise perfectly good LJ Jeeps.

And yes, I have driven my Jeep, with manual trans, stock gearing, through large rocky trails, over significant ledges, dropoffs, staircases, and off-cambers in all directions, and on some hair-raisingly steep and rough trails across both the Mojave and Sonora deserts, Owens Valley and its surrounding mountains, and through both Colorado and Nevada. I'm well aware of what a stock configured 2006 LJ Rubicon on 33s with a NP241OR transfer case is capable of. I own one. I'm also well aware of what a highly-modified custom off-road vehicle on 37s, with an Atlas tcase and built 289 Ford on Dana 60s will do. Not sure what difference it makes, but it's not my first rodeo with Jeeps and off-roading, by a long shot. My background is actually racing motorcycles and baja bugs in SCORE, Baja Cross, and AMSA events, and I spent many a day and night pre-running with my old CJ5, racing several classes of race vehicles, likely before you were born. My last two years were spent with the Stroppe Team, where I was able to learn about building the toughest off-road race vehicles in the world for SCORE, NORRA, Dakar, La Carrera Panamericana, Pro Rally, and keep them together long enough to make the finish line in races like the Mint 400 under the punishment of drivers like Parnelli Jones, Manny Esquerra, Gale Pike, Scoop Vessels, and Bob Gordon.

No need to be condescending and rude.

Nobody was being condescending or rude. You were still trying help the OP original question. The thread had evolved from there to a simple discussion about transfer case options. You chimed back in today with axle gearing recommendations with a long post about highway performance, axle gearing and torque curve.
Long threads here rarely stay on topic. We are easily distracted.

 

[Dustdevil]

Nobody was being condescending or rude. You were still trying help the OP original question. The thread had evolved from there to a simple discussion about transfer case options. You chimed back in today with axle gearing recommendations with a long post about highway performance, axle gearing and torque curve.
Long threads here rarely stay on topic. We are easily distracted.

Got it. Sorry for the intrusion.

 

[SkylinesSuck]

Just order an atlas

I'd think about it myself but I've heard they are a tough fit with a tummy tuck, especially a Savvy one. Aren't they yuge?

 

[Gollywomper]

Got it. Sorry for the intrusion.

No intrusion at all!!! join in with the rest of us. We are just rambling about. Sounds like you have plenty of knowledge to share. Sorry if I came off all wrong.

 

[Wildman]

Got it. Sorry for the intrusion.

Input is always welcome. But as stated this thread had evolved past the OP's questions and more into what's out there and what options are now available.

 

[Wildman]

I'd think about it myself but I've heard they are a tough fit with a tummy tuck, especially a Savvy one. Aren't they yuge?

You'll have to ask someone who has one or has installed one. You know who to ask.

 

[Gollywomper]

I'd think about it myself but I've heard they are a tough fit with a tummy tuck, especially a Savvy one. Aren't they yuge?

A flat belly would be tough. The box that covers the shift rails on the back of the case is tight as it sits further back.

 

[RINC]

I'd think about it myself but I've heard they are a tough fit with a tummy tuck, especially a Savvy one. Aren't they yuge?

I may need more of a smooth surface than the stock TC skid in its stock location. Got 17" at the lowest point of the stock skid.

 

[mrblaine]

I'd think about it myself but I've heard they are a tough fit with a tummy tuck, especially a Savvy one. Aren't they yuge?

 

[SkylinesSuck]

View attachment 389827

Is that a custom crossmember to make it fit?

 

[Wildman]

I'd think about it myself but I've heard they are a tough fit with a tummy tuck, especially a Savvy one. Aren't they yuge?

I'm taking these from @Alex01 build thread since he has an Atlas.

 

[Wildman]

I think Alex has a UCF NoBody lift skid if that helps any.

 

[RINC]

Blaines pic make me happy.

 

[Gollywomper]

For comparison here is the flipped 300 stock trans mount, stock skid and 1” body lift.
It sits a bit further back than the above cases.

 

[Gollywomper]

Blaines pic make me happy.

Looks like it belongs there.

 

[Irun]

I'd think about it myself but I've heard they are a tough fit with a tummy tuck, especially a Savvy one. Aren't they yuge?

@Sj's TJ installed an Atlas. I can't remember what skid he runs but a custom cross-member was used.

 

[Sj's TJ]

@Sj's TJ installed an Atlas. I can't remember what skid he runs but a custom cross-member was used.

I run the UCF ultra high clearance skid with my atlas 2. I also have a TMR universal trans crossmember. I did need to clearance (beat on) the tub to make it all fit and clear without touching.

 

[mrblaine]

Is that a custom crossmember to make it fit?

I do custom crossmembers on all the Atlas installs. That is the only way I can generally get them in place with the stock transmission mount to slow down the potential for annoying vibes at idle. I also use my "custom" belly skids. Custom in quotes since I do have the plates cut and bent up in small batches but I do have to fit each one to the frame holes for the bolts.