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Long Range Fuel Tank 30 gallons ordered [ADMIN WARNING: NO POLITICS]

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SierraBronco

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Can you machine gears and such? We need someone who can machine a lower low gear ratio for our transfer cases! I don't really want to go higher than my 4.70 in the axles due to pinion size going down and becoming the weak link.
I might be mistaken, but I think @BigMeatsBronco figured out there simply isn’t enough room in the housing for bigger planetary gears in this t-case.
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Can you machine gears and such? We need someone who can machine a lower low gear ratio for our transfer cases! I don't really want to go higher than my 4.70 in the axles due to pinion size going down and becoming the weak link.
No. That's very specialized work in terms of materials, tooth geometry, heat treating, finishing, etc. I mean I'm sure by doing enough homework, I could design a successful TC gear, but there must be many who are "ready to make chips" (i.e. start machining).

I'd try pinging @5GENIDN (in another thread or DM 😉).
 

5GENIDN

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No. That's very specialized work in terms of materials, tooth geometry, heat treating, finishing, etc. I mean I'm sure by doing enough homework, I could design a successful TC gear, but there must be many who are "ready to make chips" (i.e. start machining).

I'd try pinging @5GENIDN (in another thread or DM 😉).
Oh I did not manufacture any gears... I just calculated the cut.

Mine was all theoretical math teaching mostly sophomore level engineering and design students. Trying to help them grasp the application of the math and physics they were learning.

The majority of graduates went structural or in some cases gun design and manufacture. There is a lot of that around here. There are a number of really good machine shops around here but I do not know any that are actually cutting gears that would be used in such a high torque scenario. A lot of gear cutting for conveyor belts and the like.... I am trying to think of somebody, anybody in this valley but.... A lot of guys that will assemble. But the gears themselves are speced (sometimes by one of my past students) and shipped in from elsewhere....
 

BigMeatsBronco

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I might be mistaken, but I think @BigMeatsBronco figured out there simply isn’t enough room in the housing for bigger planetary gears in this t-case.
Correct, i did pull apart my old hummer h3 transfer case with the 4:1 ratio... Not only are the slpines different, but the case itself is bigger on the h 3 handle the extra set of planetaries. I also talked to one of the manufacturing engineers that works at borg warner, they explained it wasn't feasible on their end. Even though they have an aftermarket division similar to spicer's aftermarket, the demand is just not there. It would take Ford ordering, like ten thousand of these to make it feasible.Financially.
 

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mack092

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I have not read this thread in a while, catching up today. All this different "metal talk" of things like 5052-H32 and 6061 reminds me of the History Channel show, Forged in Fire.
I also do not know the science. But I use their skids , they have held up pretty good to rock scars and the weight is light too.
 

Brian_B

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I spent a summer cutting gears at Warner Gear in Muncie — 6th and R for the (at the time) new 6 speed Corvette

The machining and heat treating and quality control for that is … very significant.
 

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"I'd like a bigger tank."

"Well, let me tell you about transfer case gears!!"
We care not for how the threadjack occurred, we only care that it happens 🙏🏼
 
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rayofsi

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It's in the US clearing customs now.
Excited because the max I gotten into my bronco raptor is 18 ish gallons .. probably the skid plate causes me to lose some expansion space on the plastic fuel tank. My friend with a base big bend with no skid gets a full 20 gallons lol.
 

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It's in the US clearing customs now.
Excited because the max I gotten into my bronco raptor is 18 ish gallons .. probably the skid plate causes me to lose some expansion space on the plastic fuel tank. My friend with a base big bend with no skid gets a full 20 gallons lol.
Excuse someone who is new to the Bronco world.... so you are saying the stock plastic fuel tank expands and contracts as it is filled and as it empties?
And the stock skid plate from Ford prevents expansion?
 

IwannaGOfast

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Excuse someone who is new to the Bronco world.... so you are saying the stock plastic fuel tank expands and contracts as it is filled and as it empties?
And the stock skid plate from Ford prevents expansion?
He has the RCI aftermarket skid plate.
 
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rayofsi

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Excuse someone who is new to the Bronco world.... so you are saying the stock plastic fuel tank expands and contracts as it is filled and as it empties?
And the stock skid plate from Ford prevents expansion?
The plastic can expand a bit. My friend with no skid definitely gets his 20 gallons
He has the RCI aftermarket skid plate.
I had the same issue with OEM raptor skid. Couldn't get above 18 gallons at fill, even when run down to 3 miles range left.
 

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Excuse someone who is new to the Bronco world.... so you are saying the stock plastic fuel tank expands and contracts as it is filled and as it empties?
And the stock skid plate from Ford prevents expansion?
The fuel tank is not a "bladder". When they are a flexible container that can expand and contract (to large relative dimensions) they are called a bladder. The Bronco fuel tanks are a reinforced polymer... yes they can expand and contract technically... we are talking hundredths to tenths of an inch... They are a "ridged" tank. I know some people are claiming that they had to make a slightly smaller tank to accommodate the skids. I do not believe that is accurate. They have the exact same part number if your vehicle came with skids or it did not.
 

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The fuel tank is not a "bladder". When they are a flexible container that can expand and contract (to large relative dimensions) they are called a bladder. The Bronco fuel tanks are a reinforced polymer... yes they can expand and contract technically... we are talking hundredths to tenths of an inch... They are a "ridged" tank. I know some people are claiming that they had to make a slightly smaller tank to accommodate the skids. I do not believe that is accurate. They have the exact same part number if your vehicle came with skids or it did not.
A second for the above, these reports of changing capacity on the order of gallons really don’t make sense. I can see a caved in skid for a little bit, not to the point of several gallons…
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