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Converting my dully to a 10 wheel drive to handle Toyhauler

Securiti
Explorer
Explorer
I have gone where most will no go. I am in the process of adding a 2nd drive axle. I am doing the work myself. As you can tell from the pics. I have came a long ways. I just have the bed work to finish the project. I will be extending the bed & dully fenders to have a full bed. Let me know what you think.



















The reason I am doing this is to handle the toy hauler better on the road.
Pictures of all
1996 Dodge 3500
4.88 Gears
GearVender Transmission
Extra 115 Gal Fuel tank
Banks Power Kit
K&N Air filter
5 Inch Exhaust
2007 Wide Open Endura Max

kevin.emerick@facebook.com
464 REPLIES 464

Securiti
Explorer
Explorer
SoCalDesertRider wrote:
Ductape,

The NP203 is full time but can be converted to part time. It is a 2-section transfer case, one section for the range box (low gear) and one section for the f/r driveline split. The 2 sections of the t-case can be separated and used independently. It is common for rock crawlers to yank the range box section from an NP203 to use a 'doubler' in their drivetrain, since the 203 has a 2:1 low range. The NP203 and NP205 were made in the 70's and both have heavy duty iron cases and can handle quite a bit of torque output from the engine. The 205 is an all-gear part time t-case. The 203 uses chain drive with a center differential for full-time operation.


Thanks for info. Can use it all.
Pictures of all
1996 Dodge 3500
4.88 Gears
GearVender Transmission
Extra 115 Gal Fuel tank
Banks Power Kit
K&N Air filter
5 Inch Exhaust
2007 Wide Open Endura Max

kevin.emerick@facebook.com

SoCalDesertRid1
Explorer
Explorer
Securiti,

Even though tandeming the truck is not how I would have gone about increasing the trailer towing or hitch weight hauling ability of the truck, it is an interesting and fun project none-the-less that I will follow as it progresses here on the forum. I lend my support to the idea. ๐Ÿ™‚
01 International 4800 4x4 CrewCab DT466E Allison MD3060
69Bronco 86Samurai 85ATC250R 89CR500
98Ranger 96Tacoma
20' BigTex flatbed
8' truck camper, 14' Aristocrat TT
73 Kona 17' ski boat & Mercury 1150TB
92F350 CrewCab 4x4 351/C6 285 BFG AT 4.56 & LockRite rear

SoCalDesertRid1
Explorer
Explorer
Ductape,

The NP203 is full time but can be converted to part time. It is a 2-section transfer case, one section for the range box (low gear) and one section for the f/r driveline split. The 2 sections of the t-case can be separated and used independently. It is common for rock crawlers to yank the range box section from an NP203 to use a 'doubler' in their drivetrain, since the 203 has a 2:1 low range. The NP203 and NP205 were made in the 70's and both have heavy duty iron cases and can handle quite a bit of torque output from the engine. The 205 is an all-gear part time t-case. The 203 uses chain drive with a center differential for full-time operation.
01 International 4800 4x4 CrewCab DT466E Allison MD3060
69Bronco 86Samurai 85ATC250R 89CR500
98Ranger 96Tacoma
20' BigTex flatbed
8' truck camper, 14' Aristocrat TT
73 Kona 17' ski boat & Mercury 1150TB
92F350 CrewCab 4x4 351/C6 285 BFG AT 4.56 & LockRite rear

DuneJunkie
Explorer
Explorer
that is a huge project to take on, great work, gonna be bad azz when its done!

for sure it is orginal, and the best parts is that YOU did it.

You could have just went out and bought a semi or something, but nope, you built something.........pretty awesome man!
2005 Chevy 2500HD 4x4 CC Duramax/Allison, with 18K SuperGlide Hitch
2008 385 Fleetwood Gearbox
2015 Polaris Rzr4 1000
2002 Honda 400ex
2009 Polaris Outlaw 90

stsmark
Explorer
Explorer
This is awesome Securiti, I applaud you for taking it on. You might consider an Atlas 3 transfer case as they are darn near indestructible. Price might be an issue. We run one in our Cummins YJ rockcrawler.

Damn the torpedoes, full speed ahead!!!!

gravessat
Explorer
Explorer
http://www.youtube.com/watch?v=TonDLE3akz4
2008 Dodge 3500 Megacab
2012 Voltage V3795 Epic package
2011 Black RZR4
2010 blue RZR4 Robbie Gordon Special!

The_Texan
Explorer
Explorer
btcruzer wrote:
I can think of only twenty or thirty easier ways to accomplish the goal.
Some people are sheeple and then some like Securiti are thinkers and doers. I would only hope there were more thinkers and doers then sheeple, but it won't happen as demonstrated by your negative post.

Bob & Betsy - USN Aviation Ret'd '78 & LEO Ret'd '03 & "Oath Keeper Forever"


2005 HR Endeavor 40PRQ, '11 Silverado LT, Ex Cab 6.2L NHT 4x4, w/2017 Rzr 4-900 riding in 16+' enclosed trailer in back.
Where the wheels are stopped today

jetboater454
Explorer
Explorer
That explains why you didn't have time to stop by when you were down this way.Had to get home to start that.Looking good.
2011 Toyota Tundra DC Long Bed
2001 Harley Dyna Lowrider

Clanton24V
Explorer
Explorer
looks good. i remember when the dodge T-rex concept came out i t was pretty sweet IMO. i know some have made their own versions of it and have used the Rockwell 2.5Ton axles. keep up the good work

gbopp
Explorer
Explorer
Securiti wrote:
Kepler4 wrote:
btcruzer wrote:
I can think of only twenty or thirty easier ways to accomplish the goal.

How about posting 2 or 3 of those in detail.

Great project Securiti! You've got more guts and fabricating talent than I.


Thank you. It is nice to hear posative comments. I am not sure what to think about the negative comments.


Don't worry about the negative comments. I'm sure we all wish we had your ability. I know I do.
Continue with the good work and keep us informed. It's an awesome project.

Securiti
Explorer
Explorer
Kepler4 wrote:
btcruzer wrote:
I can think of only twenty or thirty easier ways to accomplish the goal.

How about posting 2 or 3 of those in detail.

Great project Securiti! You've got more guts and fabricating talent than I.


Thank you. It is nice to hear posative comments. I am not sure what to think about the negative comments.
Pictures of all
1996 Dodge 3500
4.88 Gears
GearVender Transmission
Extra 115 Gal Fuel tank
Banks Power Kit
K&N Air filter
5 Inch Exhaust
2007 Wide Open Endura Max

kevin.emerick@facebook.com

Securiti
Explorer
Explorer
ScottE28516 wrote:
There's an "envy" joke here somewhere, right?:h


There is allways a few that will ride at others expense.
Pictures of all
1996 Dodge 3500
4.88 Gears
GearVender Transmission
Extra 115 Gal Fuel tank
Banks Power Kit
K&N Air filter
5 Inch Exhaust
2007 Wide Open Endura Max

kevin.emerick@facebook.com

ScottE28516
Explorer
Explorer
There's an "envy" joke here somewhere, right?:h
01 Volvo 660, ISX 500 Cummins, RV Hauler
05 Sierra Sport F37SP Toyhauler, flipped axles
09 Playtech 5 seat long travel sand rail
07 Yamaha Rhino 660 4 seater
04 Kawasaki KFX 700
04 Kawasaki KFX 400
07 Polaris Phoenix 200

Kepler4
Explorer
Explorer
btcruzer wrote:
I can think of only twenty or thirty easier ways to accomplish the goal.

How about posting 2 or 3 of those in detail.

Great project Securiti! You've got more guts and fabricating talent than I.
2021 Forest River Sun Seeker 2550 DSLE E450 chassis
Hellwig sway bars
Bilstein shocks

Ductape
Explorer
Explorer
Part time operation unless you need the traction is a good idea. IIRC there were some Fords back in the 70's with a divorce mounted full time transfer case. NP203? If so a 203 may or may not be up to what that Cummins will send to it.
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