Lifting '19 JGC Trailhawk with 2 post lift - JeepForum.com
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post #1 of 19 Old 10-14-2019, 01:45 PM Thread Starter
Rich Z
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Lifting '19 JGC Trailhawk with 2 post lift

I'm trying to figure out the best way to lift the TH on my 2 post lift in my garage. Rear lifting points are easy enough to find, but the fronts seem to want to be lifted on the pinch weld joints. But before I try to embed photo links (last time I tried I got kicked out for some reason), let me address another issue.

What do I do about the air lift shocks? Apparently there are setting on the Uconnect system for various settings related to lifting the vehicle. Options are:
  1. Tire Jack Mode
  2. Transport Mode
  3. Wheel Alignment Mode

Not sure which one would be appropriate for the vehicle being lifted by the frame and all four wheels off of the ground. Perhaps any one of them that disables the air lift system will be OK?

And if I did not do that above, would any damage result? I can see marks on the frame near the lifting points up front that indicate that at some point my vehicle had been lifted via a jack using just the frame as the lifting point. Which, quite honestly, I can't see any reason why that would not work just as well. To use the pinch welds, I would have to buy adapters for the arm pads on my lift. Even that might be a problem because the panels on either side of the pinch weld are not at the same height, so the entire weight would be on the thin flange itself. I would think that over time that would just split those rubber adapters I have been mulling over on Ebay.

In any event, before I try and get kicked in the shins again, is there any reason why I can't embed links to the photographs I have stored on my server so I can easily show what I am talking about? I tried to just drag and drop them as attachments from my PC, but that didn't work. I couldn't find any section on this site itemizing the rules about such things, so I guess asking here is my only option.

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post #2 of 19 Old 10-14-2019, 02:22 PM
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Not sure why imbedded images aren't working for you, perhaps they are too large. At far as links to a images on a site, that should also work, many here have done that over the years. I prefer embedding images in the post, this server has plenty of room, as I have to follow any link to make sure its not leading to a spam or porno site. There is a forum help desk for questions. https://www.jeepforum.com/forum/f373/ Sometimes others on the forum can view posted images just fine but your local browser or app won't.

The Tire Jack Mode disables the air suspension until you start driving. The controller will also detect jacking and disable itself.

Supporting by the pinch welds at the specified jack points front and rear will work, can't help you with adapters but the weight should be carried by the pinch weld.

A warning if you pull the rear shocks off while on the lift, the wheel will drop and the air bag will likely pop out or tear. Always support the A arms/wheels when working on the shock..

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post #3 of 19 Old 10-14-2019, 02:45 PM Thread Starter
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Well OK, I'll try to embed a single image as a test to see how that works before trying the others.



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post #4 of 19 Old 10-14-2019, 02:58 PM Thread Starter
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Ah, good, that worked. So on to the issue....

The pads on the arms of my lift are rather large, and certainly not suitable for use on the pinch weld seam at all. So I would need some sort of adapter for that purpose.



It looks to me that the vehicle has already been put on a lift, if even just a jack, as evidenced by some abrasion marks on the frame. Honestly, I don't see why I couldn't just use that frame myself, but I would likely position the pad several inches south of where those marks are on the passenger side.



On the driver's side, it's a bit more of a problem, as there doesn't appear to be any suitable flat level surface. Not sure how the lift or jack that was used prior was positioned, according to the witness marks I see below. I'm thinking putting the pad to lift from the skid plate positioned there would work OK, however. But honestly, not crazy about that. I did find some adapters on Ebay, but had some trouble finding some that seemed tall enough. Looked like I would need about 2 inches to clear that plastic body panel near the pinch seam. Sure seems like a lot of trouble when all that would be needed is something similar to what is used in the rear lift points.



The lift points provided for the rear, both driver and passenger side, seem to be just fine.







As for the air suspension system, then by lifting all four wheels off of the ground, I just just disable the system itself? This won't damage the shocks in any way?
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post #5 of 19 Old 10-17-2019, 05:45 PM
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@Rich Z
Thanks for posting this, and the photos of the skid plates. I am going tomorrow to sign for and pick up our New JGC TH to replace our 2016 JGC Overland that was stolen 10Sep19. Informative threads thanks again for posting them.
Have you owned a Jeep Grand Cherokee before or is this your first adventure?

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post #6 of 19 Old 10-18-2019, 09:53 AM Thread Starter
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Quote:
Originally Posted by w6pea View Post
@Rich Z
Thanks for posting this, and the photos of the skid plates. I am going tomorrow to sign for and pick up our New JGC TH to replace our 2016 JGC Overland that was stolen 10Sep19. Informative threads thanks again for posting them.
Have you owned a Jeep Grand Cherokee before or is this your first adventure?
First JGC. Third Jeep. Bought a Wrangler Sport back in 1998, then a Wrangler Sahara in 2015. Sold a 2007 Corvette to buy the 2015 Wrangler, and traded in a 2009 Corvette Z06 for this Trailhawk. Getting tired of vehicles that didn't want to get their feet wet, I guess.

I put the JGC on the lift using the frame as lift points instead of trying to use the pinch welds. Worked out just fine. Was very stable and solid feeling.













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post #7 of 19 Old 10-18-2019, 10:43 AM
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@Rich Z
Great photo's thanks for posting them. How do you like the 5.7L Hemi?

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post #8 of 19 Old 10-18-2019, 11:01 AM Thread Starter
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Thanks.

The hemi seems to work quite well even moving all the weight of the Grand Cherokee. I know some people claim that the V6 is just fine, but I have the V6 in the Wrangler 2 door, and wish there was a bit more oomph there. If the Wrangler 4 door had come out with the hemi as an option, I likely would have bought one. I considered the JGC SRT, but it seemed like what I would have gotten didn't equate for the price differential. As for the Trackhawk, nah. No one who wants to track a vehicle wants to use something THAT heavy and anti-aerodynamic.

Anyway, the hemi 5.7 hemi seems to have pretty good throttle response, even when it is no in "sport" mode, and it makes the JGC seem lighter and more nimble than I expected. Wish it were an aluminum block instead of iron, though, as it would have taken a good bit of weight off of the front end. But at least the heads are aluminum, so that is something.

I changed the oil the other day with 697 miles on the odometer. Surprisingly the oil that came out was really clean looking. Quite unlike the first oil change I did on the 3.6 V6 in the Wrangler. That was nearly black as coal. Seems to me that all the oil changes I have done on the V6 have been that way. I don't let the oil change go beyond 5,000 miles, and normally is a lot less. But the oil just seems to get very dirty in the V6 for some reason. At least in my case. I've been using the Pennzoil full synthetics, either the Platinum or Ultra Platinum (when I can get it) versions.

So actually, for me, the hemi engine was a non-negotiable option when considering the Grand Cherokee. And since I live just 3/4s of a mile from the Apalachicola National Forest, and actually live on a dirt road, the Trailhawk just seemed like a perfect match.

Don't get me wrong, I do like the Corvettes, but dang, I was dusting off the cars before taking them out on a drive, and then dusting them off afterwards. And they ride so low that you can get high centered even on a speed bump in a parking lot. That was just getting old to me.
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post #9 of 19 Old 10-18-2019, 11:14 AM
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In my 2016 JGC we had the 3.6L V-6. I can't find a Trailhawk that has the 3.6L V-6 anywhere in So.Cal. For that matter anywhere within 500 miles. So I'm stuck with the Semi V-8. Does your Trailhawk have a sun roof. We don't want one and I think they don't come with the sunroof.

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post #10 of 19 Old 10-18-2019, 12:36 PM Thread Starter
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Originally Posted by w6pea View Post
In my 2016 JGC we had the 3.6L V-6. I can't find a Trailhawk that has the 3.6L V-^ anywhere in So.Cal. For that matter anywhere within 500 miles. So I'm stuck with the Semi V-8. Does your Trailhawk have a sun roof. We don't want one and I think they don't come with the sunroof.
Unless gas mileage is a critical factor for you, I don't see how you would be unhappy with the hemi. Gives you better towing capacity, and quite frankly just makes the vehicle a pleasure to drive. I was afraid my wife wouldn't like it (she said I lost a lot of my "coolness" when I get rid of that Z06) but after she drove it she said she actually does like it quite a bit.

No, mind didn't come with a sunroof, and I'm glad of that. I didn't want one neither. The option mine came with was the "Advanced Active Safety Group". There was another optional package available, which I believe included the sun roof.
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post #11 of 19 Old 10-19-2019, 01:32 PM
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Quote:
Originally Posted by Rich Z View Post
Unless gas mileage is a critical factor for you, I don't see how you would be unhappy with the hemi. Gives you better towing capacity, and quite frankly just makes the vehicle a pleasure to drive. I was afraid my wife wouldn't like it (she said I lost a lot of my "coolness" when I get rid of that Z06) but after she drove it she said she actually does like it quite a bit.

No, mind didn't come with a sunroof, and I'm glad of that. I didn't want one neither. The option mine came with was the "Advanced Active Safety Group". There was another optional package available, which I believe included the sun roof.
I'm was thinking that I wouldn't be happy with the Hemi Engine. They had a Trailhawk 6.4L Hellcat Engine but I couldn't see the additional cost.(Almost $40,000.00 over what it cost me). I only drove the Jeep 15 miles coming home from the dealership. We are going to go somewhere maybe tomorrow just to drive it and play with all the bells and whistles. We have the Quadra Lift Air Suspension and I need to activate it and I need to get running boards installed on the Jeep.

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"There's too much Blood in my Caffeine System"

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post #12 of 19 Old 10-19-2019, 01:57 PM
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Quote:
Originally Posted by w6pea View Post
They had a Trailhawk 6.4L Hellcat Engine but I couldn't see the additional cost.(Almost $40,000.00 over what it cost me).

That could be a Trackhawk or SRT model.

The 5.7 V8 does not have the clunky V6 start/stop feature, if that makes you happier .
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post #13 of 19 Old 10-19-2019, 01:59 PM Thread Starter
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Actually the gas mileage with the hemi wasn't all that bad, all things considered. Not for something that heavy and breadbox shaped, anyway. Seemed to me that on route 75 coming back home after picking it up, it averaged 22 or so mpg while doing 70 mph. I have the dash set up to display the instantaneous MPG, and it did seem very heavily tied to my right foot.

Seriously? They have a 6.4 hemi Trailhawk? Never heard of such a thing. I know there is the 6.4 hemi SRT version, but it is not a Trailhawk and not trail rated. And I know there is a 6.2 supercharged Hemi Trackhawk but it is just kind of a weird duck, in my opinion. It's also not trail rated so not particularly suited for off roading, yet far too heavy and bulky to be something to be taking to the track, even with 707 horsepower. But Jeep does say it will do the quarter mile in 11.6 seconds, which is not shabby at all, so maybe it would be one hell of a sleeper on the street.

As far as I know, the Trailhawk is the only version of the Grand Cherokee that is trail rated and badged accordingly.

But yeah, those other versions are quite a bit more expensive than than the lower performance versions of the Grand Cherokee. The 5.7 that comes optional in the Trailhawk is fine for me. Honestly, if I were wanting to spend nearly $100K for a sports vehicle, I can't say that the Trackhawk would be on the top of my list. But sure would be able to get you to the grocery store or the kids off to school in a hurry.

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post #14 of 19 Old 10-19-2019, 02:04 PM
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Quote:
Originally Posted by Rich Z View Post
...

As far as I know, the Trailhawk is the only version of the Grand Cherokee that is trail rated and badged accordingly.

...

Any model with the ORA option package is trail rated. The trailhawk is basically a Limited with ORA package plus some styling. The Trailhawk unique model nomenclature is just a marketing thing, the hardware is the same. At one time there was some difference in the OEM tire brand.
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post #15 of 19 Old 10-19-2019, 03:10 PM Thread Starter
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Any model with the ORA option package is trail rated. The trailhawk is basically a Limited with ORA package plus some styling. The Trailhawk unique model nomenclature is just a marketing thing, the hardware is the same. At one time there was some difference in the OEM tire brand.
So does that mean I could get an SRT model or the Trackhawk with the ORA option?

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