40's on 392?

[3TV]

I think it is more how the Jeep is driven. Some people are throttle Jocky's, and some people aren't.

Some people could break an anvil.

On my last trip to Moab two weeks ago I had a built Gladiator with tons and 37s following me for the better part of the day. He asked me what I was doing to drive my 392, because from what he could see from right behind me I never appeared to give it the gas or even use the brakes. When I drive my 392 on challenging trails, NOT buggy trails, (there is a difference) I rarely have to give it very much throttle at all. It has so much torque even at idle that it will idle over most anything. If I want to go faster, I upshift with the paddle shifter. If I want to go slower, I downshift with the paddle shifter.

And there is so much talk in this thread about everything that needs to be done to run 40s on a 392, or any Jeep for that matter. I think people are forgetting that for most of us a Jeep is a work in progress. It is never finished, at least mine never are, up until they are put up for sale that is. The eventual plan is UD 60s and an Atlas II transfer case. I'll get there someday. In the meantime, I'll do trails I enjoy, like Rubicon and Moab. I just picked out trails I'm going to try to get for this year's Easter Jeep Safari. I have picked one 5, four 7s, an 8, and a 9.

I have driven Jeeps for 50 years, and all Jeeps definitely do not drive the same, or respond the same to larger tires. I test drove a JK on 40s that I was thinking of buying a few years back, and it was HORRIBLE! It felt so vague and floaty that it was scary. In contrast, my first impressions after going from a 2 1/2" Metalcloak lift and 37s to a 4 1/2" Metalcloak lift and 40s on my 392 was being surprised about how really good it drove. The tires were balanced perfectly, there is no driveline vibration up to the 80-mph speed limit. It tracks straight, doesn't wander, or pull to one side. It actually corners flatter than it did with the shorter lift and 37s. It is really pleasant to drive to work and back and on the several long trips to Moab I take each year. I think part of that is set up. I went to a CAT scale and got an axle weight for each axle on my Jeep, a total weight, and weighed a tire and wheel and sent the information to Accutune to build the King shocks I am using this time around. They did a much better job than they did with the Fox DSC shocks I had them do with the shorter lift. The Dynatrac ball joints and Metalcloak tie rod, drag link, sector shaft brace, and track bar brace also help. I am also using Metalcloak geometry correction brackets on the front suspension. An Apex power steering boost kit and cooler help with the steering. I have no complaints at all with the way it drives.

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[Fast-n-Furious]

I think it is more how the Jeep is driven. Some people are throttle Jocky's, and some people aren't.

Some people could break an anvil.

On my last trip to Moab two weeks ago I had a built Gladiator with tons and 37s following me for the better part of the day. He asked me what I was doing to drive my 392, because from what he could see from right behind me I never appeared to give it the gas or even use the brakes. When I drive my 392 on challenging trails, NOT buggy trails, (there is a difference) I rarely have to give it very much throttle at all. It has so much torque even at idle that it will idle over most anything. If I want to go faster, I upshift with the paddle shifter. If I want to go slower, I downshift with the paddle shifter.

And there is so much talk in this thread about everything that needs to be done to run 40s on a 392, or any Jeep for that matter. I think people are forgetting that for most of us a Jeep is a work in progress. It is never finished, at least mine never are, up until they are put up for sale that is. The eventual plan is UD 60s and an Atlas II transfer case. I'll get there someday. In the meantime, I'll do trails I enjoy, like Rubicon and Moab. I just picked out trails I'm going to try to get for this year's Easter Jeep Safari. I have picked one 5, four 7s, an 8, and a 9.

I have driven Jeeps for 50 years, and all Jeeps definitely do not drive the same, or respond the same to larger tires. I test drove a JK on 40s that I was thinking of buying a few years back, and it was HORRIBLE! It felt so vague and floaty that it was scary. In contrast, my first impressions after going from a 2 1/2" Metalcloak lift and 37s to a 4 1/2" Metalcloak lift and 40s on my 392 was being surprised about how really good it drove. The tires were balanced perfectly, there is no driveline vibration up to the 80-mph speed limit. It tracks straight, doesn't wander, or pull to one side. It actually corners flatter than it did with the shorter lift and 37s. It is really pleasant to drive to work and back and on the several long trips to Moab I take each year. I think part of that is set up. I went to a CAT scale and got an axle weight for each axle on my Jeep, a total weight, and weighed a tire and wheel and sent the information to Accutune to build the King shocks I am using this time around. They did a much better job than they did with the Fox DSC shocks I had them do with the shorter lift. The Dynatrac ball joints and Metalcloak tie rod, drag link, sector shaft brace, and track bar brace also help. I am also using Metalcloak geometry correction brackets on the front suspension. An Apex power steering boost kit and cooler help with the steering. I have no complaints at all with the way it drives.

Really nice looking and capable rig!

Do you mind getting me couple of pictures of the Fox ATS mounted on the tie rod when the wheels turned all the way to driver side? I'm still running stock tie rod and drag link, after relocating the Fox ATS I noticed rubbing and it's really tight. Bought the MetalCloak stabilizer relocation bracket, but I'm afraid there's an angle causing binding when the wheels locked on the driver side. When the front wheels are straight, the SS is almost level, even better when wheels locked to the passenger side since the tie rod goes a bit higher.

 

[3TV]

Sorry it took me a while Fast Man.

Here are pictures of the relocation bracket from Synergy, and how close it comes to the Next Venture differential cover and differential skid plate.

 

[Fast-n-Furious]

Sorry it took me a while Fast Man.

Here are pictures of the relocation bracket from Synergy, and how close it comes to the Next Venture differential cover and differential skid plate.

Thanks a lot! Happy new year!

 

[dgerb]

I think it is more how the Jeep is driven. Some people are throttle Jocky's, and some people aren't.

Some people could break an anvil.

On my last trip to Moab two weeks ago I had a built Gladiator with tons and 37s following me for the better part of the day. He asked me what I was doing to drive my 392, because from what he could see from right behind me I never appeared to give it the gas or even use the brakes. When I drive my 392 on challenging trails, NOT buggy trails, (there is a difference) I rarely have to give it very much throttle at all. It has so much torque even at idle that it will idle over most anything. If I want to go faster, I upshift with the paddle shifter. If I want to go slower, I downshift with the paddle shifter.

And there is so much talk in this thread about everything that needs to be done to run 40s on a 392, or any Jeep for that matter. I think people are forgetting that for most of us a Jeep is a work in progress. It is never finished, at least mine never are, up until they are put up for sale that is. The eventual plan is UD 60s and an Atlas II transfer case. I'll get there someday. In the meantime, I'll do trails I enjoy, like Rubicon and Moab. I just picked out trails I'm going to try to get for this year's Easter Jeep Safari. I have picked one 5, four 7s, an 8, and a 9.

I have driven Jeeps for 50 years, and all Jeeps definitely do not drive the same, or respond the same to larger tires. I test drove a JK on 40s that I was thinking of buying a few years back, and it was HORRIBLE! It felt so vague and floaty that it was scary. In contrast, my first impressions after going from a 2 1/2" Metalcloak lift and 37s to a 4 1/2" Metalcloak lift and 40s on my 392 was being surprised about how really good it drove. The tires were balanced perfectly, there is no driveline vibration up to the 80-mph speed limit. It tracks straight, doesn't wander, or pull to one side. It actually corners flatter than it did with the shorter lift and 37s. It is really pleasant to drive to work and back and on the several long trips to Moab I take each year. I think part of that is set up. I went to a CAT scale and got an axle weight for each axle on my Jeep, a total weight, and weighed a tire and wheel and sent the information to Accutune to build the King shocks I am using this time around. They did a much better job than they did with the Fox DSC shocks I had them do with the shorter lift. The Dynatrac ball joints and Metalcloak tie rod, drag link, sector shaft brace, and track bar brace also help. I am also using Metalcloak geometry correction brackets on the front suspension. An Apex power steering boost kit and cooler help with the steering. I have no complaints at all with the way it drives.

I'm also going to EJS in April....what trails are you planning on running? I'm signed up for Golden Spike, Flat Iron Mesa, Metal Masher and
behind the Rocks tip toe...

 

[3TV]

I have confirmed registration for these trails:
Rose Garden Hill 4/14/25
Poison Spider Mesa 4/15/25
Flat Iron Mesa 4/16/25
Metal Masher 4/17/25
Cliffhanger 4/18/25

Hope you are on some of the same ones I am.

 

[wibornz]

I have confirmed registration for these trails:
Rose Garden Hill 4/14/25
Poison Spider Mesa 4/15/25
Flat Iron Mesa 4/16/25
Metal Masher 4/17/25
Cliffhanger 4/18/25

Hope you are on some of the same ones I am.

So, Rose Garden Hill. One of the few places I have had to winch. The cool thing about Rose Garden hill is you can take Onion Creek to get to the bottom and come out by the Top of the World Trail or reverse it and Go past the Top of the world trail to Rose Garden and come down the hill and go out Onion creek. Just know that you can run the Top of the world trail the same day you do the hill. You should have enough time in a day. We got out there about 2 pm. Did Rose Garden and the hill, up and down then went back and did Top of the World. It was about 5 hours.


Cliffhanger is one of my favorite trails, It has challenging obstacles almost immediately leaving the trail head. plus great views.

The others are cool too. Poison Spider Mesa Is fun. I have do it up and back down a couple times, and then went out to go all across the Mesa to pick up Where Eagles Dare, Golden Rim, Golden Spike, Golden Crack, Rusty Nail, end out at Gemini Bridges then back to Moab. That's a long day.

Are you going to climb Widowmaker on Metal Masher? I passed on it. That was just above my skill level back then. I might try it know, but I would be hooking up the winch line just for safety.....

 

[3TV]

I've done it before, but it was a while ago. I've decided to wait and see what it looks like this year. I read that only 1% of Jeeps are making these days.

 

[dgerb]

I have confirmed registration for these trails:
Rose Garden Hill 4/14/25
Poison Spider Mesa 4/15/25
Flat Iron Mesa 4/16/25
Metal Masher 4/17/25
Cliffhanger 4/18/25

Hope you are on some of the same ones I am.

Looks like I'll also be on Flat Iron Mesa and Metal Masher on the same dates...

 

[3TV]

Hey, that's great. For Metal Masher they have two departure times for that day. One group departs at 8:00 and the other group departs at 10:00. I am in the second group. I didn't want the group to have to hurry along to stay ahead of the ones behind them. And the second group had fewer vehicles in it. Do you know what group you are in?

 

[dgerb]

Hey, that's great. For Metal Masher they have two departure times for that day. One group departs at 8:00 and the other group departs at 10:00. I am in the second group. I didn't want the group to have to hurry along to stay ahead of the ones behind them. And the second group had fewer vehicles in it. Do you know what group you are in?

10:00 also...

 

[3TV]

Well then, I'll see you there. I just saw you are from Sedona. That's got to be nice. I go there every year for work-related meetings.

 

[bh867]

That's interesting. I have portals and 42" tires. Plus the PSC steering also. I was rather suspect at installing the PSC kit. I had it on my JK with 42"s and Curries. It was like herding a snake down the road. The unit on my 392 is very very good. No twitch at all. Is it as good as stock, no, I would be a liar to say that. 42" on anything will change the dynamics of steering. I will say that it is a 9.5 out of 10 when compared to stock with 37"s (brother has one and we have done side by side comparisons). I can drive 85mph with confidence.

Possibly talk to Austin at PSC. Maybe you have, but he is a great resource.

Sam

Which psc kit did you do?

 

[Spencer]

thought I was on Tacomaworld on a Friday seeing this thread today

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