Rotor Size

[WXman]

Do the wide track axles come with larger brake rotors? Or are all JT rotors the same?

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[wvuviv30]

Do the wide track axles come with larger brake rotors? Or are all JT rotors the same?

According to Rockauto... all JTs run the same pads and rotors.

 

[Ohio JKU]

We did our first oil change and tire rotation yesterday and the rotors on the willys package are bigger that my jk wrangler. I agree with the above/ and From prior reading I also believe all JT rotors are bigger and the same across the JT models/packages

 

[dawghauler]

brake rotor size will depend on if you got standard axle jt or a maxtow. maxtow has larger brakes for the increased towing and weight capacity.

 

[WXman]

So I've got two votes for they're the same, one vote for wide track axle rotors are larger.

 

[kevman65]

Rotor/caliper are all the same size across the trim packages.
This allows the 17" spare to fit across all trim packages.

A 17" wheel is the smallest wheel that will fit any Gladiator due to rotor/caliper size.

If you want to do a big brake upgrade, I believe 18" wheel is the smallest that will fit.



Front rotors 12.9 inches
Rear rotors 13.6 inches

https://www.thecarconnection.com/specifications/jeep_gladiator_2020

 

[jebiruph]

Looks like there are 2 different part numbers
68321343AC
68321348AC

 

[kevman65]

Looks like there are 2 different part numbers
68321343AC
68321348AC

Yup, those are the rears, fronts have 2 part numbers also.

Key is look at vehicle fitment at bottom, ALL trim levels.

 

[CerOf]

Diesel Rubicon (and I’m pretty sure max tow) have vented front AND rear rotors.

I *think* the others are not vented rear.
Someone go out and look at theirs?

 

[jebiruph]

Yup, those are the rears, fronts have 2 part numbers also.

Key is look at vehicle fitment at bottom, ALL trim levels.

The manual transmission is only listed on one of them. Just because all trim levels are listed for both doesn't mean they are the same, it just means it was available on all trim levels. If there are different part numbers, they are different parts.

 

[kevman65]

The manual transmission is only listed on one of them. Just because all trim levels are listed for both doesn't mean they are the same, it just means it was available on all trim levels. If there are different part numbers, they are different parts.

If it fits all trim levels, then there are no bigger rotors. Rotors are the same diameter.
Manual transmission is not a trim level, it is an option within a trim level.

One could be vented as stated, or one could be thicker. But there is no bigger rotor.
Since Mopar doesn't deem to list dimensions for their parts, it's all a guessing game.
But also since they all come with a 17" steel spare, then no brake setup can be larger than what a 17" wheel will take.

Never mind the rotor diameters I gave and their source. I should know better than to try to be practical.


Oh, Mopar also releases new part numbers when an old part number is discontinued. Suppliers are going to list old part number until they sell out.

 

[kevman65]

Here, Jay put the spec's up some time ago.
Very first post and scroll down till you get to brakes.
There may be different rotors, but that wasn't the question, there are no bigger rotors.

https://www.jeepgladiatorforum.com/...ecifications-sheet-feature-availability.8468/

 

[WXman]

Yeah so I found the Jeep specification sheet off their website. It only shows one diameter for the front and one for the rear across all trims. Interesting.

They're pretty large, actually. In terms of size they are barely any smaller than what you find on the 3/4 ton trucks from a lot of brands.

Thanks guys.

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