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Add-On Overdrive for a '79 Ford PU ..???

B

BushogPapa

Well-known Member

Anyone know of any Over-Drives that can be installed in the drive-line..??

This is a 4 barrel 460 Auto with low miles...

Not bad now..12+ with a trailer MT...of-course, only 6 Loaded Heavy, but that is just fine..!!
Love the Brute Power of that Animal..!!

Used to have a '55 Ford, 3-speed Overdrive and a Police-Interceptor 352 in it..Automatic rear gears, that thing was Purrrrr-fect..!!!
Ron..
 
I have heard of a few company's that have aftermarket over drives for cars and truck but never did much checking into them. My son has a 1951 Chev we are going to build and if all goes right will have 16 forward speed and it will have a 1.5-1 over drive give or take a little. I have a couple aux transmission for some bigger gas burners that I hope to use one day in a couple of my rigs if I ever get a-round-to-it. Have a 1969 Chev 3/4 ton that does not have a bed that I would like to turn into a small look like big rig and would love to figure out how to do a tandem rear axle on it so both reares pulled like the big rigs do
 
Though not a Ford guy, I would expect that the easiest alternative would be a later model 4 speed automatic OD transmission.

Dean
 
You won t find anything better than the Gear Venders unit. It might be cheaper to buy anouther truck but they are great units.
 
(quoted from post at 19:02:42 08/21/11) It used to be a popular swap to install an E4OD with a controller from a non Powerstroke 7.3 behind pretty much anything.
Click to expand...

Brian, Would you mind explaining this to me a little bit??

I've been told over and over I can't do this..

I have a 1986 F-250.. I already repowered the worn out 6.9 with a pretty strong 7.3 (I'm happy with it for what I invested)

I lost my C-6, and I'm in the process of reinstalling it currently (had it rebuilt) but if it gives any more issues I'm either going to go manual, or would rather go to a E4OD

My email should be open if that'd be easier for you.

Thanks,

Brad
 


E4OD, early models at least only require a push button that can be dash mounted to activate the OD side of it. If it's from a non turbo 7.3 or the 460 it will bolt right on your 460.....wire in the button/toggel and away you go with OD. Only thing you may have to do is fab a rear tranny mount but I've been told the original will work. You can also swap in an E4OD from a Ford small block to and older Ford truck with a small block. Only catch there is going with the 300. The in line 300 6 is balanced different and uses a different torque converter but has the same bolt pattern as the small block V8.

Rick
 
Check out the site that Lloyd in S.C. posted. Gear vendors has been in business for some time. Their unit will cost about as much as an E4OD, BUT, the advantage of the Gear Vendors unit is that you can use the OD in any gear. If you have a three speed automatic, you will then have a six speed automatic. If you have a four speed manual, you will then have an eight speed manual. There would be some advantage to that.
 

I know that, some years ago, I did see a small truck with Twin-Screw rearend....it had probably 16" dual tires on each rear axle..
Problem is, I have NO Idea what State I saw it in.!!
It was being used as a regular Road Truck, maybe for wood or Coal, I don't remember, but it looked GOOD..!

Ron..
 
The old dodge 1 1/2 ton 6x6 used the same standard offset transfer case as the 4x4 power wagon, but with another driveline coming off the e-brake flange. One rear end is centered, another is offset. Use one of these NP200 t-cases, or make a hybrid NP205 and then you can have one rear driving until you put the t-case in "4x4" and then they all drive.

Josh
 
I know of at least one that some one built. I had info on it years ago and the guy used a 4X4 transfer case to work as the power divider and said it had like 6 or so U-Joints and a couple of carrier bearing. Sounded to much like night mare rig to me to want to try plus have yet to find an old style transfer case
 

Where there is a Will, there must be a "way"..!!

Do you want to run a 2-speed rear-end, or single speed..?
With some machining, I would bet you could make an out-put from the front, straight thru, to the rear drivers..
Might have to make a bearing mount into the rear of the front housing and make (or Spline) an extension from the front pinion..
The one I saw years ago I believe had the rear drive straight thru from the rear of the front rear-end..
I am pretty sure I saw that in some State West of here and I am in Ohio..
Not much help, I know...!
Runs in my mind it was a Ford-type light truck or Pick-up, extended, with a big box over the dual rear-ends..
Ron..
 
Only need a single speed rear end or ends I have a couple aux transmission so no need for a 2 speed since it would have twin 4 speeds giving it 16 forward and 4 reverse speeds. Have 4 old aux transmission out of the old gas burner tandem axle big rigs laying around
 

I hope a couple of them are synchronized..!!

Would sure be easier to shift than the old 4x4 trans..!!!
I never did like those..!!
Maybe, because they were in trucks with entirely too little HP..
Loaded, I usually just shifted the Aux..no need to try to keep up with the Main trans...!!!!
The old fart that I drove it for had removed the Maxi-Brakes, too...!!!
What a piece of crap those trucks were..!!

Ron..
 
Ya sort of funny how them old big block engines like the Ford 534 or the IH 6??s did not have much pull power for as big as they where. I have on the place 2 IH tandems with the twin sticks that have 600 plus cubic inch engine in them and one old Ford super duty with a 534 in it. Drove more then one of those and could do pretty good unless you missed that one gear then you started all over again. And talk about sucking down the fuel
 
(quoted from post at 20:31:55 08/21/11)
Anyone know of any Over-Drives that can be installed in the drive-line..??

This is a 4 barrel 460 Auto with low miles...

Not bad now..12+ with a trailer MT...of-course, only 6 Loaded Heavy, but that is just fine..!!
Love the Brute Power of that Animal..!!

Used to have a '55 Ford, 3-speed Overdrive and a Police-Interceptor 352 in it..Automatic rear gears, that thing was Purrrrr-fect..!!!
Ron..
Click to expand...

Fixing up a 33 yr old truck for the road is likely a hobby project so how much do you want to spend for how much return?
The carbed engine will never return the mileage a well dialed in fuel injection will.
Without a lockup torque, an additional OD will mostly just make more torque slippage.
I assume Ford build some HD pickup tranmsissions with OD, locking torque and mechanical/hydraulic control?
 
check out gear vendors,ive been thinking of putting one in a 87 i just bought.I drove for a long time a 79 ford with 460, and one of these installed from the dealer.I never had a seconds problem with it in 250,000 miles.believe it or not THAT truck got right at 20 mpg.A cheaper way might be to install an AOD transmission(not eod electric shift that requires computer control) they can be bought fairly cheaply,and with the right parts from a donor truck are a bolt on.lots of info on ford truck forums.before you spend a lot of money though,consider how you drive the truck and what advantage you would gain by swapping rearend gears.on mine by swapping to 3.08 gears(from 3.55) ,and changing from the stock @26" tires to a taller 30" i can gain 15%.drop 65 mph engine rpms from @3000,to @2500(calculated) which should make a better hyway effecient vehicle.with that and a aod rpms would be close to 1500,which would be so low on my engines(351) torque curve that it would likely be worthless.do a search on web for gear ratio calculators,and you can plug and play with different setups.keep in mind you dont want to get to far below your engines peak torque,3-500 rpms below peak torque is a good aiming point.
 

In the early 70's, we (Volunteer) Fire Dept got a new Pumper with a 534..never had any problem with that..
Several times it had to give FULL Rated power ALL Night, on a couple fires...
I remember one in Delaware, Ohio and it was -2 Degrees that night...!!
That temp and the Heat still cracked the windows in businesses across the 4 lane William St..
Tell me, just WHEN was Ford supposed to have brought out the OHV V-8..??
Our 1st Pumper was a 1951 Ford, 500 GPM with an OHV Ford engine...All Original..
Does that sound wrong..??
I always thought the 1st year for an OHV Ford V-8 was 1954 (239 Cu In..same as the Late Flat-Head)...

Ron..
 
OHV all had to do with application. They used them in the late 40 on some of the tractor built out side of the U.S. and of course in the early 50s on the Jubilee as the first U.S. tractor with OHV and then in some of the larger engines in trucks but from I understand kept the flat heads in the cars till around 1952 or later
 
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