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The Daughter’s ‘84

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Atlas75

The Daughter’s ‘84

I’d like to introduce the newest member of our bullnose family! It is a 1984 F250, 6.9L diesel, 4x4, T19 truck. My daughter has been looking for a truck for a while and this one fit the bill. It also has A/C! Anyway, here is a photo.

We have a few things to work on before she can drive it to school but it runs, drives, and stops good so the basics are there. I think her truck is in better shape than mine! I like this photo because you can see my 1980 in the background.

Carl

1980 F-350 4X4; 400 C6; Dana 61 rear, Dana 50 TTB front
1984 F-250 4X4; 6.9L T19; Dana 70 rear, Dana 44 TTB front

ArdWrknTrk

Re: The Daughter’s ‘84

Administrator

Well done!

I envy the members who can find a serviceable Bullnose truck.
The winter salt and mag chloride here in the Northeast just eats them up...

She looks quite happy and proud of herself. (As she should be 😉)

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

gaveasky

Re: The Daughter’s ‘84

In reply to this post by Atlas75

I've got an 83 in the exact same configuration! That thing is in great shape and I wish mine had AC. I look forward to hearing more about it.
Do the glow plugs work?

Took me two days to hammer my PO's old ones out and put a push-button setup in my F250.

Atlas75

Re: The Daughter’s ‘84

The glow plugs do seem to work. The PO replaced them shortly before we purchased the truck. This truck also has a push button for the glow plugs. I assume the controller is the issue as they frequently went bad. I plan to rebuild the factory system with a solid state controller and eliminate the push button.

Carl

1980 F-350 4X4; 400 C6; Dana 61 rear, Dana 50 TTB front
1984 F-250 4X4; 6.9L T19; Dana 70 rear, Dana 44 TTB front

grumpin

Re: The Daughter’s ‘84

I had a 1988 F250 with the 7.3.

I finally went through the glow plug system, found burned connectors, bad glow plug connecters etc.

Got it working good.

One thing that really helped was I used a heavy duty appliance timer for the block heater, when it was cold I would have it come on two hours before I left for work.

If it was really cold, three hours. And use the OE block heater, they are good.

Also use good glow plugs, I think Beru was the brand then that was best.

The other glow plugs wouldn't last long and they would bulge on the end when they failed. Which made for nerve wracking removal, not wanting them to break off in the preignition chamber then going into the cylinder.

Here's an example of the timer, https://www.homedepot.com/p/TORK-15-Amp-24-Hour-Indoor-Plug-In-Heavy-Duty-Appliance-Timer-with-2-Outlet-Receptacles-White-RTN312/306607224

Dane
1986 F250HD SC XLT Lariat 4x4 460 C6-Sold
1992 Bronco XLT 4x4 351W E4OD
1998 GMC Sierra SLE K1500 350 4L60E
Arizona

Atlas75

Re: The Daughter’s ‘84

In reply to this post by Atlas75

Where is everyone getting their vacuum hose and fittings for the heater controls? I have been researching the size and material but am coming up with varying answers. I need to do further testing but I am pretty certain there is a line or two that have leaks or have collapsed.

Carl

1980 F-350 4X4; 400 C6; Dana 61 rear, Dana 50 TTB front
1984 F-250 4X4; 6.9L T19; Dana 70 rear, Dana 44 TTB front

Atlas75

Re: The Daughter’s ‘84

Will a Sterling 10.25 from a 1987 F250 bolt into an ‘84? A local yard has one with 3.55’s and limited slip. I think it would be better for highway speeds vs. the 4.10’s that are in it now. Thoughts?

Carl

1980 F-350 4X4; 400 C6; Dana 61 rear, Dana 50 TTB front
1984 F-250 4X4; 6.9L T19; Dana 70 rear, Dana 44 TTB front

grumpin

Re: The Daughter’s ‘84

I think it should bolt in, but not sure. Someone will know.

I had 3.55's in my old 86 F250 and I really liked them. Always had 4.10's, that truck had no problem pulling with 3.55's and the 460.

Dane
1986 F250HD SC XLT Lariat 4x4 460 C6-Sold
1992 Bronco XLT 4x4 351W E4OD
1998 GMC Sierra SLE K1500 350 4L60E
Arizona

Gary Lewis

Re: The Daughter’s ‘84

Administrator

In reply to this post by Atlas75

I also think it will. But what are you going to do about the front? You can't use 4wd with two different ratios.

And on the vacuum line question, which I'd missed, I buy bulk vacuum line from the local parts store. But I don't remember what size. I cut into the line I'm replacing and determine the size by slipping a drill bit in.

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

Atlas75

Re: The Daughter’s ‘84

I need a little help determining what the rear axel is in the ‘84 F250. The axel code on the door sticker is 72. That code does not have a listing for 1984 in the rear axel documentation on this site.

The Dana BOM number from the axel tag says 605205-7. That code comes back to a 1983 to 1985 1/2 Dana 70 from a chassis cab F350. The truck is not a chassis cab. It is a pickup.

So you can see the issue? The two pieces of info seem to conflict.

Carl

1980 F-350 4X4; 400 C6; Dana 61 rear, Dana 50 TTB front
1984 F-250 4X4; 6.9L T19; Dana 70 rear, Dana 44 TTB front

ArdWrknTrk

Re: The Daughter’s ‘84

Administrator

Clear pic of the door tag???
Are you sure it's not code G2? Which would be a 4.10 LS Dana 70U (6,300#) in a pickup for '84-'85?
Code 72 seems correct for that same axle in an '85 Model Year according to Gary's list...

What is the wheel mounting width (track width) of the axle?
Chassis cab would have 34" wide spring perches and 2 1/2" wide pads for the springs.
Have the perches been re-welded?

I used to see more 70's in vans than in pickups. (but, again the frame widths are different)

D70 should have 3 1/2" tubes and 70 cast in the lower right quadrant web as shown in this illustration from the Spicer service & maintenance booklet.

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

Gary Lewis

Re: The Daughter’s ‘84

Administrator

The 605205-7 does decode to E4TA 4001-BEB or BEC with a 4.10 ratio in an 84 F250/350.

Gary, AKA "Gary fellow": Profile

ArdWrknTrk

Re: The Daughter’s ‘84

Administrator

Is one limited slip and the other is not?

Because it seems G2 is LS and code 72 is open.

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

Gary Lewis

Re: The Daughter’s ‘84

Administrator

Both show as open/unlocked:

Gary, AKA "Gary fellow": Profile

Gary Lewis

Re: The Daughter’s ‘84

Administrator

And I should have posted this to complete the loop:

Gary, AKA "Gary fellow": Profile

Atlas75

Re: The Daughter’s ‘84

In reply to this post by ArdWrknTrk

Here is the door tag. Even though it seems like we solved the issue. Dana 70 it is!

Carl

1980 F-350 4X4; 400 C6; Dana 61 rear, Dana 50 TTB front
1984 F-250 4X4; 6.9L T19; Dana 70 rear, Dana 44 TTB front

Gary Lewis

Re: The Daughter’s ‘84

Administrator

Looks like "72" to me.

So we have another instance of one part of the MPC being wrong. As shown below it says that an 84 didn't get that axle. But here's a truck made in January of 84 that got one.

Glad you had the BOM so we could look it up another way.

Gary, AKA "Gary fellow": Profile