Bring a 250 up to 350 capacity? - Page 2 - Ford Powerstroke Diesel Forum
Suspension & Steering Discuss OEM & aftermarket suspension, lifts, air ride suspension, shocks, steering components, etc.

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post #11 of 31 Old 06-15-2019, 11:05 AM
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Why do people even buy 250's if they're the same price as a 350? Always puzzles me.

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post #12 of 31 Old 06-15-2019, 11:35 AM
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For some locations in the U.S.A. a vehicle is taxed based upon GVWR. So a F250 (@10k) will be cheaper than a F350 (@11.5K) ...single wheel trucks. I have been told that's partly why Ford will allow to buy an F350 single rear wheel and get the "10k GVWR"....it's just what the sticker says for the most part but you get the F350 hardware.



At this point in time it seems as Ford has been getting the two single wheel trucks SO close to each other with options and standard features it's becoming just a different badge and door jam GVWR sticker between the two trucks.



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post #13 of 31 Old 06-15-2019, 12:45 PM
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Quote:
Originally Posted by Horizon122 View Post
Why do people even buy 250's if they're the same price as a 350? Always puzzles me.
Yeah that's why I went with a 450, was actually cheaper than a similar equipped 350?
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post #14 of 31 Old 06-15-2019, 04:16 PM
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If I remember correctly. The 250 uses a vacuum booster and 350 uses hydro booster. The 250 has a 13.5 Sterling axel and the 350 has a Dana 80. All of this goes into that GVWR sticker heavy was speaking of. I did not mention it as it was not relevant to OP question.

But heavy is right and you could potentially get in trouble with your insurance company in the event of an accident carrying more than your sticker allows.
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post #15 of 31 Old 06-17-2019, 03:56 AM
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All diesels use hydro. Vacuum is only on gas F250.

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post #16 of 31 Old 06-17-2019, 04:30 AM
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The brake system part of this is where I find conflicting information. I find most sources say All F-250s/Gas F350s will use vacuum, where All F350 diesels (SRW & DRW) will have hydro-boost. Of course the F450 and up have hydro-boost.


I've tried to find the physical differences in the power steering systems to see where the lines feed the brake booster. That's the key....Otherwise I'll have to do some more lot searching to pop hoods and inspect hands-on.



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post #17 of 31 Old 06-17-2019, 10:37 AM
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Quote:
Originally Posted by HeavyAssault View Post
The brake system part of this is where I find conflicting information. I find most sources say All F-250s/Gas F350s will use vacuum, where All F350 diesels (SRW & DRW) will have hydro-boost. Of course the F450 and up have hydro-boost.


I've tried to find the physical differences in the power steering systems to see where the lines feed the brake booster. That's the key....Otherwise I'll have to do some more lot searching to pop hoods and inspect hands-on.
Diesels use the hydroboost as diesels don't produce vacuum on it's own & especially vehicles with turbos don't produce vacuum. They actually have a vacuum pump that is used for the auto lockers and maybe?? A couple other things. I just did a PS job on a 7.3 f250 and I am about to do one on a buddy's 350. Everything is identical between the two diesels engine wise

As far as axles go there might be a difference, I am not sure but I can confirm 100% the f250 & f350 diesel does run on Hydroboost.

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post #18 of 31 Old 06-17-2019, 11:20 AM
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i was pretty sure some of the new diesel F trucks used vacuum via vacuum pump

i was pretty surprised when i read that hydro was not included on all
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post #19 of 31 Old 06-17-2019, 11:30 AM
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post #20 of 31 Old 06-17-2019, 12:21 PM
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Quote:
Originally Posted by jonathanh96 View Post
Diesels use the hydroboost as diesels don't produce vacuum on it's own & especially vehicles with turbos don't produce vacuum. They actually have a vacuum pump that is used for the auto lockers and maybe?? A couple other things. I just did a PS job on a 7.3 f250 and I am about to do one on a buddy's 350. Everything is identical between the two diesels engine wise

As far as axles go there might be a difference, I am not sure but I can confirm 100% the f250 & f350 diesel does run on Hydroboost.

Not sure if you are only speaking of 7.3L motors or newer diesels as the OP stated he has a 2018 which is where we need to focus the discussion.



As ZMANN posted there is quite a bit of information by Ford and under the hood that says newer F250 diesels are a vacuum boost setup.



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