Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

4wd conversion

Thread Tools
 
Search this Thread
 
Old Aug 14, 2015 | 04:02 PM
  #1  
Willz74's Avatar
Willz74
Thread Starter
|
Elder User
Joined: Jul 2015
Posts: 555
Likes: 0
4wd conversion

I have a 76 camper special 2wd and I was thinking of putting a ttb in to make it 4wd I don't want to lift it or cut up the frame to put in a solid axle I've been led to believe the 2wd setup is basically a ttb without the driven parts any thoughts
 
Reply
Old Aug 14, 2015 | 05:31 PM
  #2  
akguy09's Avatar
akguy09
Senior User
Joined: Nov 2014
Posts: 208
Likes: 1
From: North Pole,Alaska
Yep....TTB is crap and not worth the effort, might as well do solid axle
 
Reply
Old Aug 14, 2015 | 05:35 PM
  #3  
HIO Silver's Avatar
HIO Silver
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 83
From: NorCal
Originally Posted by Willz74
I have a 76 camper special 2wd and I was thinking of putting a ttb in to make it 4wd I don't want to lift it or cut up the frame to put in a solid axle I've been led to believe the 2wd setup is basically a ttb without the driven parts any thoughts
You'll need to cut or cut out the massive 2WD crossmember.
And a rear sump pan
And adapt the steering
And install a transfer case
And install a front driveshaft
And shorten the rear driveshaft
And cut a hole in the floor for a T-case shifter
And fab up shock mounts
 
Reply
Old Aug 14, 2015 | 05:59 PM
  #4  
Willz74's Avatar
Willz74
Thread Starter
|
Elder User
Joined: Jul 2015
Posts: 555
Likes: 0
My highboy seems to have engine problems so it appears I won't have a 4wd truck to take a camper out this hunting season and I have a spare axle transmission transfer case and front drive shaft I think would work it looks like its way more effort than its worth
 
Reply
Old Aug 14, 2015 | 07:50 PM
  #5  
HIO Silver's Avatar
HIO Silver
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 83
From: NorCal
Old Aug 15, 2015 | 03:01 AM
  #6  
Willz74's Avatar
Willz74
Thread Starter
|
Elder User
Joined: Jul 2015
Posts: 555
Likes: 0
 
Reply
Old Aug 15, 2015 | 06:23 AM
  #7  
gatorfor88's Avatar
gatorfor88
Postmaster
Joined: Jan 2013
Posts: 3,512
Likes: 3
From: Panama City
Yes I would say it has a little bit of an engine problem.
 
Reply
Old Aug 15, 2015 | 12:07 PM
  #8  
Willz74's Avatar
Willz74
Thread Starter
|
Elder User
Joined: Jul 2015
Posts: 555
Likes: 0
For what it's worth the walls are 140 thick with a .030 over bore
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-1

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-2

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-3

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-4

Every 2026 Ford Engine Explained

 Brett Foote
story-5

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-6

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-7

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-8

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-9

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
Old Aug 15, 2015 | 12:31 PM
  #9  
Roger Carter's Avatar
Roger Carter
Laughing Gas
20 Year Member
Liked
Joined: Sep 2003
Posts: 968
Likes: 5
From: Corbett, Oregon
Originally Posted by Willz74
For what it's worth the walls are 140 thick with a .030 over bore

Well, 7 of them, anyway.
 
Reply
Old Aug 15, 2015 | 01:34 PM
  #10  
Willz74's Avatar
Willz74
Thread Starter
|
Elder User
Joined: Jul 2015
Posts: 555
Likes: 0
6 of them 2 are in the oil pan

The issue was a 428 police interceptor flywheel on a 360
 
Reply
Old Aug 15, 2015 | 02:25 PM
  #11  
gatorfor88's Avatar
gatorfor88
Postmaster
Joined: Jan 2013
Posts: 3,512
Likes: 3
From: Panama City
Originally Posted by Willz74
6 of them 2 are in the oil pan

The issue was a 428 police interceptor flywheel on a 360
This may have had something to do with it. I am inclined to believe it was the nut that holds the steering wheel.
 
Reply
Old Aug 15, 2015 | 02:52 PM
  #12  
Willz74's Avatar
Willz74
Thread Starter
|
Elder User
Joined: Jul 2015
Posts: 555
Likes: 0
If someone wants that flywheel I don't need it (unless someone want to give me a matching engine) c6ae-6380-b police cruiser 428 Newly faced new ring gear pm if you're interested
 
Reply
Old Aug 15, 2015 | 03:34 PM
  #13  
four-sixty-power's Avatar
four-sixty-power
Fleet Mechanic
20 Year Member
Joined: Feb 2005
Posts: 1,782
Likes: 15
From: Lower Mainland B.C.
apparently rumour has it that a front axle from the 99+ superduty series comes with front coil springs setup that will fit the 70s series 2wd coil springs setup... havent confirmed this though
 
Reply
Old Aug 15, 2015 | 04:30 PM
  #14  
77&79F250's Avatar
77&79F250
Moderator & parts slinger
Veteran: Army
15 Year Member
Community Builder
Liked
Joined: Feb 2007
Posts: 50,256
Likes: 5,818
From: S/W Missouri, Polk county
Club FTE Gold Member
There is nothing nuts and bolts about a 4wd conversion, there is not a thing that is bolt on or swappable. The engine cross members are entirely different, and this means that if an un molested truck is what you are after, it will be impossible to create one with a 2wd platform.
The 2wd will have to be lifted quite a way to clear the front diff. 2wd trucks are coil sprung and most F250 4wd's are leaf sprung. None of the suspension items are even close to the same, so you will be fabricating or modifying some original 4wd stuff to work.
Steering systems are entirely different as well, so you will be upgrading that too.
My last conversion with leafs ran me several thousand dollars, and that was with the work that I performed for free. The difference in sale values between a 4wd and 2wd are minimal, and the 4wd conversion is hardly justifiable.
Well the frames are similar, with a few exceptions. The frame horns are slightly different, and the frame widths aft of the cab are different from 73 to 77 trucks. The frame rise is also slightly different, but this is not a show stopper and does not make much difference one the fabrication begins.
Now the important question is whether or not you will be using a coils springs or a leaf spring. It is possible to install a 78/9 radius arm and suspension. Not a big deal really, and with a standard cab this is reasonable. Not quite as easy with a super cab and or crew cab.
The 2wd frames are not cut for the shackle pivot, and they do not have the provisions for a spring hanger, but again, this is not a deal breaker. Installing a pivot is just a tedious process, accuracy is key.
Ok, so next is the transfer case. You have two choices, install a married case, and this requires the proper transmission. Might find some difficulty making or modifying an output shaft to accommodate the early C6 and a married transfer case. So then the next option is to find a divorced transfer case, and install this. You will have to make up a cross member, but then you will have to get creative with the shifter linkage. See the 4wd trans will have an adapter or tailshaft with a pivot for a typical 205 shifter. Fabrication is the only limiting factor here.
Next and final factor will be the speedo. See your speedo works from the trans, so that being the case, you will have to get a speed reference from the t-case. If you do not, the speedo will read twice as fast when you put the case in low range. But you will be in 4 low so who cares how fast you are going.

As mentioned the steering box will have to be relocated, and the truck will require some lift. That engine crossmember has limited clearance so you will be looking at some lift to even clear it. The other option would be to remove it and replace it with a tubular unit.
 
Reply
Old Aug 15, 2015 | 05:33 PM
  #15  
Roger Carter's Avatar
Roger Carter
Laughing Gas
20 Year Member
Liked
Joined: Sep 2003
Posts: 968
Likes: 5
From: Corbett, Oregon
A better, and certainly easier, option would be a body swap. find a 4x4 chassis you like and put your body on it. For the most part it is nuts and bolts, and not too many of them.

There is still a bit of fabrication needed, but no where as much, or as involved as doing the conversion.

Good luck.
 
Reply



All times are GMT -5. The time now is 05:30 PM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE