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Old 05-20-2019, 02:32 PM   #1
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Upgrade Brakes on Grayhawk?

Has anyone here upgraded either the pads or rotors on their Grayhawk? I have a 2018 31FS and feel that the stopping power could be better.

I upgraded the brakes on my F150 when I had a travel trailer and it made a huge difference in stopping power. Just wondering if the same thing exists for the E450.

It does not seem like a common thing, so maybe I just need to get used to the way it stops with OEM brakes.

Thanks for any info!
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Old 05-20-2019, 08:31 PM   #2
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I could definitely use more whoa.
And a firmer pedal.


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Old 05-20-2019, 09:28 PM   #3
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Upgrade Brakes on Grayhawk?

Check Rock auto. They have a couple of options (for rotors and pads) Not sure if theyíll be any better than stock

They do have upgraded Pads like powerstop
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Old 05-20-2019, 09:34 PM   #4
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I have a 2014 but I don't think they have changed much since the newest model but any ways the brakes are great. Put the trans in town haul mode and the down shifting will slow you down for sure.
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Old 05-21-2019, 08:15 AM   #5
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The 450's used as chassis in most class C's are notorious for weak braking. From what my Ford guy told me, the brakes are not upgraded on these units when they are turned out as RV's. The result may be no worse than a soft petal or weak stopping power but better breaking is often one of the first things that is noted when someone upgrades to a Bus or a stronger truck chassis. Weak braking is a common issue with class C's.
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Old 05-21-2019, 08:32 AM   #6
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That mirrors what I am feeling in driving the coach.

So with that being a weak spot in these units, why has the aftermarket industry not stepped in to make upgrade options???? Seems like a market ripe for making some money.
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Old 05-21-2019, 02:59 PM   #7
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The biggest hurdle would be having to invest in larger diameter rims so you could fit a larger brake rotor in there. Maybe you could swap in some parts from a F series truck.
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Old 05-21-2019, 03:10 PM   #8
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I found quite a few options on RockAuto.com.

Not sure if they are better or not, but they catagorize them, and the details of some of them read as better stopping power than OEM.
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Old 05-21-2019, 04:28 PM   #9
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I have no complaints on the braking of my E 450; especially with the tow/haul. Years back, the E 350's were notorious for poor braking but a known fix was to put a master cylinder from a E 450 into the E 350. The slightly increased piston worked wonders. It worked well for me. Just wondering if a 550 series master cylinder might work on an E 450.
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Old 05-22-2019, 02:25 PM   #10
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No issues with my 2018 E450 (29MV). If it stopped any harder, my cabinets would probably dislodge from the walls. Of course, I try to avoid any situation that might warrant hard braking (as one should with any 14,000 pound vehicle).
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