2021 Bouncy ride with Rubicon package

[WhyNotJeep]

The dealer fills tires to the door sticker. They don't get paid to think.
The rear shocks are soft to ride well on the test drive before the sale. The Mopar 2 ich lift shocks are probably stiffer. There are plenty of stiff shocks out there. Falcon is one. I am going to do my suspension lift last after much research.
I'll decide on some good springs, then talk to Accutune about some correct Fox shocks. Then track bars, control arms, swaybar links, bump stops. Not wanting anything over 2 inches.

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[DocMike]

Clayton 2.5 Overland plus.....LOVE mine

If the best answer is a lift kit, what is a very good quality kit for 2 1/2” lift max? My experience in the past with lifts is buy a really good one or you will regret it later.

 

[ShadowsPapa]

The dealer fills tires to the door sticker.

No, they dont.....41 isn't 38, and 41 isn't 36.
My door sticker says 38 so I'd expect anyone to fill tires to that 38 even if I put 35" tires on that were 14" wide. But when multiple shops on multiple visits fill my tires to 41 or more, it's pretty obvious they aren't even opening the door, let alone looking at a sticker and reading a simple 2 digit number.
There's been dozens of people here who have picked up their trucks from various shops only to find where the sticker says 36 (perhaps Rubicon) the gauge reads over 41.
I don't get that magic 41 number. I bet I've let air out of mine at least a half dozen times because when I get the truck - 41 psi is what I find.
I guess it's like Musk's 420 or Lennon's 9.

 

[DocMike]

You'd think they would just use 42....

No, they dont.....41 isn't 38, and 41 isn't 36.
My door sticker says 38 so I'd expect anyone to fill tires to that 38 even if I put 35" tires on that were 14" wide. But when multiple shops on multiple visits fill my tires to 41 or more, it's pretty obvious they aren't even opening the door, let alone looking at a sticker and reading a simple 2 digit number.
There's been dozens of people here who have picked up their trucks from various shops only to find where the sticker says 36 (perhaps Rubicon) the gauge reads over 41.
I don't get that magic 41 number. I bet I've let air out of mine at least a half dozen times because when I get the truck - 41 psi is what I find.
I guess it's like Musk's 420 or Lennon's 9.

 

[ecidiego]

40 hot will read 37 cold, at least on my 33s. Can't expect a dealer to know the heat state of the tire.

When I come back to pavement and air up, I always fill to 40. Next morning, TPMS reads 37 all 4.

 

[ShadowsPapa]

40 hot will read 37 cold, at least on my 33s. Can't expect a dealer to know the heat state of the tire.

When I come back to pavement and air up, I always fill to 40. Next morning, TPMS reads 37 all 4.

That's nothing to do with it. LOL. Really -You are defending their airing up cold tires to over 40 psi?

When you have tires mounted COLD, they are in the back of the truck, it's 25 degrees and snowing out, they put TPMS sensors in the wheels, the cold pressure is what they are supposed to fill them to. And yet when that truck is backed out of the shop, there's 41-42 psi in tires that should have 36 cold. The truck isn't on the highway while they are filling.

We're talking shop visits, not off-roading.

Look at all of the people on this forum that went to pick up their NEW JT that was just prepped - and find the tires are sitting over 40 psi - cold.

I bought my 5 tires from the Jeep shop - they pulled my existing tires (also cold by that point because it took them a while to get to it) and put the new on the rims, and aired them up to over 41 and the tires were supposed to be 36. The tires were sitting in their cold shop.
Yes, I do expect a dealer to know the heat state of a tire they rolled over to the machine and mounted to a rim - It's not rocket science.

None of these dealers are pulling a vehicle in off the highway and airing them up.
They are pulling in vehicles off the lot that have cold tires that are sitting at the correct pressure and putting more in them.
I used to sell tires and mount and balance them. They always went out with the correct cold pressure when I put the tires on the car.
If the sidewall feels warm, anyone with a brain knows it's not a cold tire. But we're talking cold tires, or at least not highway temperatures.

 

[NC_Overland]

Do you believe in hanlon's razor?

If you do: A dealership's garage is not a brain trust, and the mechanics that are smart usually aren't doing oil changes and tire rotations. Big tire more air! (which isn't wrong, but there is a factory spec for a reason, and it's posted in a place a monkey could be trained to check)

If you don't: Overfilled tires wear out unevenly (aka quicker), and dealer's train techs to overfill tires so you need to buy yours sooner.

They do it so they don’t have to deal with TPMS lights coming on when the temperature changes.

 

[ecidiego]

You are defending their airing up cold tires to over 40 psi?

Uh, no, no I wasn't.

 

[Maximus Gladius]

They should make a law to fill with nitrogen

 

[steve68]

They should make a law to fill with nitrogen

Then it would cost to air down, and to air back up, you'd have to find a GN2 source, not really cost effective,

 

[WhyNotJeep]

I just tell them don't touch the tire PSI. If they do, I adjust it. Tire PSI is something I can still do on this thing.

 

[ShadowsPapa]

They do it so they don’t have to deal with TPMS lights coming on when the temperature changes.

And they can sell more tires and alignments.
But in reality, even if they service my wife's Grand Cherokee and over-inflate the tires like they always do, once winter hits here, I deal with the TPMS warning saying a tire is too low.
I had mine aired up for towing and forgot to air them back down. Winter hit and I got TMPS messages! You'd have to air some of these up pretty high to avoid that message.

They should make a law to fill with nitrogen

Not a total fix - from AAA -
Since nitrogen does not completely eliminate temperature-related pressure changes under normal driving conditions, it is of little benefit to vehicle owners who properly maintain their tires.

Tire sites will tell you to use nitrogen because they charge for it and you keep coming back to them instead of filling yourself. But since air is 78% nitrogen anyway, the difference is minimal.

https://www.consumerreports.org/tir...ld-you-use-nitrogen-in-car-tires-a6260003694/

 

[ShadowsPapa]

I just tell them don't touch the tire PSI. If they do, I adjust it. Tire PSI is something I can still do on this thing.

One good thing about tire dealers and Jeep dealers almost always over-filling. The fix is simple - let air out until it's correct. You don't need anything other than a good gauge. Better that, I guess, than then underfilling and I have to go home and air them up.

 

[545moose]

Stock FOX shocks are definitely way soft, just going to run them till I can swap everything to a better quality lift on all 4 corners and never look back. All the bounce and wiggle with my RTT at speed is annoying

 

[Ball_Ze]

They should make a law to fill with nitrogen

78% should be good enough.

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