JeepFan
Hooked
Yup! Of course I ignored the message. Probably voided my powertrain warranty but oh well..Oh for the love of god... are you serious???
And so it Begins... the 392
- Thread starter wayoflife
- Start date
Brute
Hooked
Not yet…it will prevent any burnouts for a year however…I agree with Trout - it is now perfect
And our GC pulled that nonsense update yesterday in the middle of moving my daughter. Like I'm gonna sit around 40 minutes in Cleveland waiting on that to finish. Drove on & ignored that message. Nothing blew up or started smoking so.....
FIRST IMPRESSIONS POST MODIFICATION
Okay, so Cindy and I went for our first real test drive since installing a 4" Rancho lift with RS7MT shocks and 38" Nitto Ridge Grappler tires and these are some of the things I can say about our initial experience.
1. While there's still plenty of power, we still feel like there is a measurable amount of power loss. In talking to Cindy about it, I think she put it best by saying that it's still fun but, when it was stock, she'd step on the gas and it would make her giggle. Off the line, it'll move well but when it comes to passing on the highway - eh, it's just okay. Kinda feels like Moby now only, he's running 40's and 1-tons. Needless to say, a regear is something we're discussing.
2. The ride that the Rancho lift and RS7MT shocks provide is surprisingly nice. We always felt that the factory suspension system was way too soft and we bottomed out far more than we felt it should. Now, the ride is firmer but in a good way. I would go so far as to say, more responsive. Hard to say how long they would last bombing across the desert but I would imagine more so than hydros would.
3. Obviously, we've run 38" Ridge Grapplers in the past and always loved that they were load range C tires. I have little doubt that a lot of what pleases us about our ride is in a big way, in part due to these tires. They are quite, comfortable and did I mention, when mounting them up, only 2 of the 5 tires had yellow dots. This as opposed to 3 of the 5 factory BFG's having red dots. In other words, they feel very very round.
4. We noticed that we now have our traction control kicking on about 3/4 of the way through a u-turn in either direction but only if we're moving through it and accelerating. If we go slowly, all is good. Currently, our best guess is that this has something to do with body roll and something on the Jeep picking it up. Not 100% sure but it's the only thing I can really think of right now. At 4" of lift, a track bar relocation at least in the rear would help this and I'll most likely try to start to address this issue there.
5. We purposefully bought our 392 with the Mopar HD tire carrier so that we could run a bigger spare. And, while it will help the tailgate hold the weight, you do need the relocation/spacer kit to do it or at least, if you keep the factory bumper. The problem with this is, with 3.5" back spaced wheels, the rubber isolators they provide still sit a long way from the sidewall. I was able to help things along buy installing Energy Suspension extended isolators and installing the factory rubber ones on them and there is good push now but, not enough to keep things firmly still when hitting big bumps. There still is some movement and enough that we can hear and see it. This has been a let down.
6. For those of you who don't know, there have been a number of TPMS changes over the years and the most recent of which was done back in June of 2021. Knowing this, I made sure to order what I thought was the correct TPMS, has the vendor VIN check it and in spite that, our TPMS does NOT work. Serious pain in the ass and one that I'm a bit disappointed about.
There's probably more I could add to this but I'll need to give it some thought. Anyway, hope this info is helpful to others considering the path of modifying their 392
Okay, so Cindy and I went for our first real test drive since installing a 4" Rancho lift with RS7MT shocks and 38" Nitto Ridge Grappler tires and these are some of the things I can say about our initial experience.
1. While there's still plenty of power, we still feel like there is a measurable amount of power loss. In talking to Cindy about it, I think she put it best by saying that it's still fun but, when it was stock, she'd step on the gas and it would make her giggle. Off the line, it'll move well but when it comes to passing on the highway - eh, it's just okay. Kinda feels like Moby now only, he's running 40's and 1-tons. Needless to say, a regear is something we're discussing.
2. The ride that the Rancho lift and RS7MT shocks provide is surprisingly nice. We always felt that the factory suspension system was way too soft and we bottomed out far more than we felt it should. Now, the ride is firmer but in a good way. I would go so far as to say, more responsive. Hard to say how long they would last bombing across the desert but I would imagine more so than hydros would.
3. Obviously, we've run 38" Ridge Grapplers in the past and always loved that they were load range C tires. I have little doubt that a lot of what pleases us about our ride is in a big way, in part due to these tires. They are quite, comfortable and did I mention, when mounting them up, only 2 of the 5 tires had yellow dots. This as opposed to 3 of the 5 factory BFG's having red dots. In other words, they feel very very round.
4. We noticed that we now have our traction control kicking on about 3/4 of the way through a u-turn in either direction but only if we're moving through it and accelerating. If we go slowly, all is good. Currently, our best guess is that this has something to do with body roll and something on the Jeep picking it up. Not 100% sure but it's the only thing I can really think of right now. At 4" of lift, a track bar relocation at least in the rear would help this and I'll most likely try to start to address this issue there.
5. We purposefully bought our 392 with the Mopar HD tire carrier so that we could run a bigger spare. And, while it will help the tailgate hold the weight, you do need the relocation/spacer kit to do it or at least, if you keep the factory bumper. The problem with this is, with 3.5" back spaced wheels, the rubber isolators they provide still sit a long way from the sidewall. I was able to help things along buy installing Energy Suspension extended isolators and installing the factory rubber ones on them and there is good push now but, not enough to keep things firmly still when hitting big bumps. There still is some movement and enough that we can hear and see it. This has been a let down.
6. For those of you who don't know, there have been a number of TPMS changes over the years and the most recent of which was done back in June of 2021. Knowing this, I made sure to order what I thought was the correct TPMS, has the vendor VIN check it and in spite that, our TPMS does NOT work. Serious pain in the ass and one that I'm a bit disappointed about.
There's probably more I could add to this but I'll need to give it some thought. Anyway, hope this info is helpful to others considering the path of modifying their 392
Last edited:
2013rubirick
Hooked
Tha
that’s weird mine is fine with the Rusty’s tire carrier and the 3.5” backspaced wheel. My rear camera view looks the exact same. Maybe it sticks the camera out just a little further so it doesn’t see the edge of the wheel.
that’s weird mine is fine with the Rusty’s tire carrier and the 3.5” backspaced wheel. My rear camera view looks the exact same. Maybe it sticks the camera out just a little further so it doesn’t see the edge of the wheel.
I'm gonna bet that your camera is sticking out just a bit more. For now, I just turned off the parking sensors.
Haven't gotten them balanced as they feel super round. I have a TPMS programmer and will give that a try.
2013rubirick
Hooked
Ya it must be. I’ve been thinking about regearing mine lately as well. I think I’m gonna do 4.88’s
4.88 is what we're thinking too.
cozdude
Guy with a Red 2-Door
Just update it when you park it for the night or go out to dinner. It’s what I tell customers daily about the GM radio updates
2013rubirick
Hooked
Who are you gonna have do it?
A.J.
Active Member
Chrysler TPMS can be a PITA. If you have the programmer that plugs in to the OBD you should be able to write them to the vehicle. Then you will still need to drive it above 25mph for 20min or more. Theoretically as long as they are the correct mhz (most likely 433mhz) it supposed to be a “drive to reset” vehicle but I have had several that took multiple tries to get them to read. Also make sure your scanner is set for a 5 tire system not 4. To add to the fun sometimes it will pick up the spare instead of one of the rears and give you a duplicate sensor message. When you do the re learn pull it out of the shop away from your other Jeeps so it doesn’t pick up one off another vehicle. Good times!
Lperdue
Active Member
I don’t think so, unfortunately with that much back spacing your tire is in the field of view of the sensors found on the bumper and thinks something is behind you. Relocating Jaela’s tire up 2 inches helped but the problem is still there. It wasn’t until we had an adjustable mount where we could pull the tire against the body of the Jeep fixed the problem all together.