Locking differential & 4WD

[Jomax]

Damn. That makes me sad. The '17 350 chassis cab I ordered should be here in a month or two. I'll be curious to look. That's disappointing.

I'm not disappointed. The brakes ROCK.


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[valvetick]

Locking differential & 4WD

The brakes on the new Ford diesel trucks aren't hydro boost ?!

I thought only dodge did that on diesels.

From my understanding the f250 is vacuum and the f350 is hydro like the older trucks. I have a 15 f350 and its hydro. My tuner told me about this when I bought the truck and said that's the reason he buys the 350's now because the vacuum assist brakes push through when staging at the tree and the hydro hold stronger.


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[Tedzz]

I followed all the vacuum hoses and all looks to be ok.. WHERE the hell is the vacuum pump?????????????????????

 

[sootie]

Its just to the right of the water pump if you are looking at the front of the truck. Need to remove the clutch fan to access.

 

[Tedzz]

Thanx

 

[Arisley]

So the vacuum pumps are belt driven instead of electrical?

 

[sootie]

So the vacuum pumps are belt driven instead of electrical?

no. they use something similar to a lovejoy coupling and run off the hpfp gear.

 

[Jomax]

From my understanding the f250 is vacuum and the f350 is hydro like the older trucks. I have a 15 f350 and its hydro. My tuner told me about this when I bought the truck and said that's the reason he buys the 350's now because the vacuum assist brakes push through when staging at the tree and the hydro hold stronger.


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I know at least a 2014 F-350 is vacuum assist as well...


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[Tedzz]

Found a vacuum tester to isolate where the vacuum leak is. Hope it is not in the hubs!!!!

 

[Tedzz]

Neither hub will hold a vacuum. Any Vendors here have the yellow O-rings??