Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

need input: Project coming soon

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Old 09-26-2007
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1 Ton Ranger Project scratchboard

i finally scored a source of income and was looking into doing a total tear down of the ranger.


Project 1-ton Red Ranger


The Heart will be a Cummins 4bt

i want to do the 4bt cause its unique and i bet everyone is tired of everyone having a 5.0 and want to see something different.

besides who doesnt want 24mpg with 35+ tires?



Im gonna find at least a dana 60 front as for the rear axle its so far going to be a 14 Bolt

height maybe go 4 more inches than now so i can properly flex the 38s
give or take somewhere in the 300 range

anyone know what type of springs i should run?

superduty might be to stiff.



it will be locked in the rear and ls in the front most likely

it will most likely stay my daily driver after im done with it.

Yes i do know and understand what kind of work is going to be involved in this and im basically ready and just biding my time, so i can tackle this smartly and make sure i have a good rig and not crap.
This is within the year and wont happen within the week but i would like some input.


I want this thing to flex like a mother but still keep good calm nature on the highway maybe at least 60mph

after i save a quick buck i'll purchase a cheap diesel to town it around and finally retire it from street duty.




Engine: Cummins 4bt (source a fedex or breadvan)
Tranny: need help with that maybe something standard
Transfer Case: Ford NP205
Gearing: 4.56?
Axles: Dana 60 and FF14Bolt
Tires: 38 inch TSLS? maybe even grapplers once again
Wheels: maybe something 16 inch or 16.5
 

Last edited by Legion; 09-27-2007 at 06:30 PM.
  #2  
Old 09-26-2007
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sounds like an awesome plan.....but....9" is half ton. Go out and get a $100 Corp 14 bolt. And make it a real 1 ton. that'd be awesome.
 
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Old 09-26-2007
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yea, its either gonna be that or the sterling
 
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Old 09-26-2007
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will the 14 bolt hold? i mean if its cheaper and will hold i could go that route.
 
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Old 09-26-2007
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where are you getting your motor from?
 
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Old 09-26-2007
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Dude, a girl was giving away a 9 inch yesterday on craigslist. Said her ex boyfriend left it and she is moving. You should jump on it.
 
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Old 09-26-2007
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I will begin the hunt first on craigslist its surprised me in the past and if not I'll call up some diesel shops and if all else fails ill buy one from the north and ship it south
 
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Old 09-26-2007
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Originally Posted by camodown
Dude, a girl was giving away a 9 inch yesterday on craigslist. Said her ex boyfriend left it and she is moving. You should jump on it.

Link?
 
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Old 09-26-2007
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you should buy an older truck and mount the ranger to it. I think I've heard of people doing that. Since you can find a 4bt diesel(or is that a forklift diesel?) truck that is already one ton.
 
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Old 09-26-2007
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sorry not there anymore, must have gotten rid of it
 
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Old 09-26-2007
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Originally Posted by Legion
will the 14 bolt hold? i mean if its cheaper and will hold i could go that route.
If you need something stronger than a full-float 14-bolt than you better get rockwells and then there goes your dd plan.
 
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Old 09-26-2007
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just keep an eye out on craigslist, axles are there all the time, 60s, 44s you name it is there, just be patient.
 
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Old 09-26-2007
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go with the rockwells . forget the diesel and fit in a 460 for some real power. daily driver on 38's. do you intend to actually use this truck offroad? my bronco chews through those tires like nothing. there not very road friendly. maybe you would be better off with 35s.
 
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Old 09-26-2007
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well work is half a mile away from where i live. i will have some AT's to drive and some Mts for play.


yes. once completed I will take it to BVORR to test it and fine tweak it after seeing its performance there.
 
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Old 09-26-2007
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Theres a dana 60 front and rear out of a late 70's f25 on EelBay goin for a few hundred. Im not sure if you would need to shorten the axle tho.

As far as tranny I would look to the NV4500 or the ford small block ZF. I believe both of them will bolt to the np205. When you source your engine the adapter on it will be a deciding factor. Keep in mind this engine is nearly identical to the 6bt in dodge fullsize diesels. So transmissions and tcase for these trucks should be the easiest to swap.

I have recently started to look into this, my budget seemed to grow to over 10k rather quickly. Got a little overwhelming.
 
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Old 09-26-2007
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There is a ranger on pirate that did the build but as of now he has problems doing 60+ due to some serious death wobble.

yea thats what i had in mind for a tranny it will have overdrive too.

i have no bills as of now, and i dont have to pay for my apartment so im doing saving.

im going to purchase the FF 14 this month then.
 
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Old 09-26-2007
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damn, sounds awesome man! let me know if theres anything i can help with, i know a little about some fab stuff.

and are you talking about mooktank?
 
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Old 09-26-2007
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sounds cool, i will try to run them full width but if one is longer than the other i'll reduce one and keep one the same.


engine weighs about 700 pounds

thats about 150 more than a 351w so im gonna base the front coils on that.

can full size bronco coils fit within a ranger?
i was thinking maybe 4 inch super flex coils.

that will raise a ranger like what to like 8 inches?
 
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Old 09-27-2007
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Caster angle and "death wobble" are related. Proper steering/suspension geometry are critical for safety.

If you leave the 4bt stock then the 44 should survive, but with little moding you can get into the 400-500 tq range. Im not sure how much the 44 can take at that point.

http://www.4btswaps.com/forum/showthread.php?t=109
 
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Old 09-27-2007
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i wont go much into tweaking the engine besides 300tq in a ranger is more than enough than way more than most v8s like it says.

i will also go hydro assist as well since i had trouble turning my tires the last time and thats only 35s
 
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Old 09-27-2007
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so does anyone know if FS Bronco coils will hold up the weight and flex good?
 
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Old 09-27-2007
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http://mooktank.com/myrig.htm

hes running a early bronco lift spring.

3rd truck in this vid is a 4bt ranger built by mooktank on pirate4x4
http://www.youtube.com/watch?v=N9JMKljxDrU
 
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Old 09-27-2007
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yea i've seen that vid.

thats what made me want one lol :p

the only thing is that thing looks stiff.
 
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Old 09-27-2007
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some info

The 4BT 3.9 engine is rated at 120+ hp @ 2500 rpm with peak torque of 327 lb-ft @ 1700 rpm. The engine weighs 570 pounds (dry). The 4BT 3.9 engine dimensions are...:

>

Total height: 30.6 inches

Total length: 30.1 inches

Total width: 22.9 inches



How does that compare with the stock GM 4.3 V6? It has 190 HP and 250 pounds of torque. It's dry weight is 492 pounds.



Total height: 26.7 inches

Total length: 26.0 inches

Total width: 22.0 inches
 
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Old 09-27-2007
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Originally Posted by Legion

thats what made me want one lol :p

the only thing is that thing looks stiff.
x2


The soft mud may play a role in how the truck looks like it rides.

http://www.wildhorses4x4.com/category/coils





Rock Crawlers 3 1/2" Coil Springs Pair
Item #: 1000
Rock Crawlers 3 1/2" Coil Springs Pair
When rock crawling was beginning to grow in popularity, most of the Bronco coil springs on the market where a linear rate design with very heavy spring rates. The bar size was so large that the springs barely fit the coil cups. What you had was a stiff, non-flexible coil with a ride that would jar the fillings out of your teeth. It became obvious to us that we needed something different, so we designed and developed the ground breaking Rock Crawler coil line. At that time, the Rock Crawlers were the softest coil you could buy for the EB. These days you can get coils so soft that you can't hardly go around a street corner without body roll that makes your Bronco resemble a boat in the water. In contrast, the Rock Crawler coils are completely compatible with daily driving and off-road terrain from coast to coast. Since their introduction, we have received overwhelming positive feedback from Rock Crawler users. The 5.5" Rock Crawler coils are available in Red, Blue, Yellow, and Black. The 3.5" and 4.5" Rock Crawlers are available in Red and Black.
 


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