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Recommended Upgrades To Grand Cherokee!

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Recommended Upgrades To Grand Cherokee!

Old 05-22-2020, 12:04 PM
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Default Recommended Upgrades To Grand Cherokee!

Hi All,

I have a 2015 JGC limited with the 3.6L V6 4x4. Everything on it is stock and it does not have Quadralift. It did not come with the factory tow package. My manual does not list a discrepancy between factory tow package and aftermarket towing capacity (as I know it does in other model years) it just says 6200lbs with a class IV hitch.

I have read a lot of posts about how capable or incapable the vehicle is as a tow vehicle. My goal is to tow a boat that weighs between 3-3.5k lbs dry (that I donít own yet).

In an ideal world I would pick up a half ton truck but the Jeep is paid off and the tow capacity seems pretty close.

My question to everyone is - what modifications can I make to my GC that will really maximize its potential and deliver the most stable ride while towing and specific components you would give priority to? IE: upgraded suspension, lift, transmission cooler, trailer brake, larger tires/smaller tires - whatever you got, throw it at me!

Thanks in advance!
Old 05-22-2020, 12:46 PM
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If you're really only going to tow up to 3500 pounds, then I would install a Class III hitch and a wiring harness and be done with it. Anything else would really only benefit a vehicle already equipped with the factory towing package.
Old 05-22-2020, 12:48 PM
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First of all, figure out what the boat is going to weigh before you start putting money into the Jeep. A boat with a 3500lb dry weight can easily get up to 5500-6000 when you add power, fuel, fluids, batteries, gear, ice, and a trailer. If you are going to be towing short distances, that will most likely be sufficient but it's not going to like being on the highway. Additionally, with what I can find in a quick Google search, it seems that the V6 JGCs without the factory tow package are only rated to tow 3500lbs because they lack the upgraded cooling that comes with the tow package.

I understand wanting to use the vehicle you have but it seems the cards are stacked against you in this situation.
Old 05-22-2020, 01:29 PM
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Why is it even a consideration if you think you can swing boat costs? Go get a new 1/2 ton while they're giving them away - tomorrow.



Old 05-22-2020, 01:55 PM
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Originally Posted by peninsula_jumper View Post
Why is it even a consideration if you think you can swing boat costs? Go get a new 1/2 ton while they're giving them away - tomorrow.
the boat and the truck have similar MSRPs I didnít know if I could afford one I could automatically afford 2?
Old 05-22-2020, 02:48 PM
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I towed for years with a mid size SUV, you are fine to tow any 20 foot center console and possibly even some 22 foot center consoles depending on if they have a low deadrise.

Just add a hitch and have fun.
Old 05-22-2020, 03:27 PM
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Originally Posted by Joehunter111 View Post
the boat and the truck have similar MSRPs I didnít know if I could afford one I could automatically afford 2?
Great reply.

Add transmission cooler and go.
Old 05-22-2020, 04:00 PM
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I thought the WK2's from 2014 to 2020 (major update version compared to 2010-2013) with 4wd was rated to tow 5,000 lbs with the V6 and no tow package and 6,200 lbs with the tow package, while the Hemi's (5.7, 6.2 & 6.4) all tow 7,200 lbs.
A 3,500 lb dry weight boat with power, fuel, safety gear and a trailer will be in the 6,000-6,500 lb range. My 23CC is 3,600 lbs dry (mfg spec), and with a V6 Yamaha 300, 90 gallons of fuel, about 100lbs of gear (including electronics), and an 1,120 lb aluminum bunk trailer hit the scales at 6,460. I tow it with a 2018 Jeep GC with the 5.7 Hemi and QD2.
Old 05-22-2020, 06:35 PM
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Old 05-22-2020, 08:30 PM
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I tow a 20ft North River OS with a Yammi 115 and 50 gallons fuel with a '13 GC with the same motor you have. Mine didn't have the tow package originally so I got the factory tow bar from Jeep which was the same price as eTrailer. The plastic surround can be cut and the factory inset installed and it will look like a factory install.

The wiring harness is already tucked up under the real end somewhere, most likely ending up at the rear bumper. You will need an adapter to convert the factory plug to the 7 pin connector which mounts on the receiver. You will probably have to have the JC computer flashed with the code to activate the tow harness or it won't work. There are two codes that show up in the Jeep data base so if one code doesn't work, use the other one. Not having the correct code will result in you not having turn signals or brake lights on the trailer.
Old 05-22-2020, 08:37 PM
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2015 should have the wiring harness all there. Just need the plug in and have the dealer add the sales code to turn it on. Mopar hitch tucks in higher and sits inside the rear bumper cover. Depending what rear bumper cover it will need to be cut. Most aftermarket hitches sit below the bumper cover.
Old 05-23-2020, 04:47 PM
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Originally Posted by Joehunter111 View Post
the boat and the truck have similar MSRPs I didnít know if I could afford one I could automatically afford 2?
I had the same attitude before I bought mine. The reality is that boating cost me $1000 a month with a boat payment, and now it costs me $650 without a boat payment. And thatís for a 20 footer.

Just keeping things real. You can get $10 or $15k for your WK2 and only have a $300-400 payment for a decent pickup.

BTW I have a 2016 JGC with 5.7 and towing package. No issues with towing 5500# of boat and trailer. If you keep yours, Iíd get the self leveling shocks from Mopar (they come with trailer package on non-Qlift WK2).
Old 05-24-2020, 06:57 AM
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I had a ‘08 GC and towed about 60k miles over a period of 8 years pulling gross trailer weight in the 3,000 to 3,500 pound range. No problems. It is a good tow vehicle. As suggested, add a transmission cooler if it doesn’t have one.
Old 05-24-2020, 08:14 AM
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To add to what's been said, check to see if it has an external trans cooler. If not adding one is a good idea, and also, adding air bags to the rear coils is as well. For a boat that size properly equipped the Grand Cherokee is more than adequate. My old '07 Grand with the Hemi + QDII pulls my 20' like a freight train, and stops it fine even with a single axle trailer and a pair of 10" drum brakes. The main thing is the soft springs, air bags really help. The later model Grands have more stable suspension design (fully independent) and better brakes than my WK-I model does, which was light years better than my old '98 Grand 4.0 liter.


Last edited by LouC; 05-24-2020 at 08:56 AM.

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