What type and how much transmission fluid do you us in a 1986 ford F-250 4x4 6.9 diesel 3 speed automatic

1986 long in toot, oil burner C6 box
generation 7 it is
wiki words
For the F-250 and F-350, a 6.9 L diesel V8 (sourced from a partnership with International Harvester)
I wonder what box is there (tranny)
3-Speed Select Shift Automatic Transmission
and is
Two transmissions are used in the 6.9L IDI, the T19 BorgWarner 4-speed manual(NO)) or Ford's C6 SelectShift 3-Speed Automatic transmission.(YES)

C6, seem to me the shift linkage is bad.
loose or bent or cracked or messed up, some how.
it has reverse lockout , that fan not be broken

if super brave, on jack stands all 4 wheels. off the ground.
I do this in safe place , 2 persons, one does not leave driver seat running.
engine off
linkage dropped of c6 left lever at the casing
put it in Reverse by hand
Emergency brake off. now.
start engine. (if p/n lockout fails bypass it)
now look at rear tries. spinning reverse. 2nd person, afar.
key off fast, brake back on ,
This is hold my beer even but if brave.... and a safe place,
try not to back over the Rolls-Royce
very dangerous. for the folks who can not see the lever links short stroke the box link what else can be done?(simple)


transmission pump port PSI checked sure.
buy the shop manual and see this, it is there;
and is way way too complex to last all this 3 on tree stuff.PRNDL12

Make : Ford
Model : F-350 Superduty Supercab
year : 2001
Engine type : 7.3 Turbo Diesel
Transmission fluid type : 4R100 automatic transmission
Good Luck

just regular transmission fluid you can put a better fluid in it but pump might not be strong enough

Transmission Types : Ford E4OD/4R100, 4 Speed, Automatic Transmission
Comments: w/ Shallow Pan = 20 bolt holes 4 speed

Drive Trains : Four Wheel Drive
Transmission Types : Ford C6, 3 Speed, Automatic Transmission =17 bolts 3speed

What does the dash indicator say and does the stick have an od button on it? there is only 1 3 speed for the 460 and only 1 4speed for the 460

Engines:{300, 302, 351w}, {400, 351m, 460}, {6.9L, 7.3L IDI}, {352, 360, 390, ect.}
Fluid:
Pre '77: Type F
Post '77: Mercon
Display: PRND21
Pan 17 bolts "Utah" shape
Ratios:
1st 2.46:1
2nd 1.46:1
3rd 1.00:1
Trans code: K

so you should have the 3 speed acording to the code
http://broncozone.com/topic/10386-transmission-id-chart/

Both the 3 and 4 speed automatic transmissions in this vehicle use Dexron II type Automatic Transmission Fluid.

Specifications Notes Use only Mercedes-Benz approved fluids

TYPE AF(DEXRON-II (R) Automatic Transmission Fluid) CAPACITY, Initial Refill*: 1982-85 190E 5.5 Liters 5.8 Quarts 1982-92 All w/V8 engines 7.7 Liters 8.1 Quarts 1986-91 190E, 260E, 300E 2.6L 6.0 Liters 6.3 Quarts 1986-91 300 Series 2.6L, except SL 6.2 Liters 6.6 Quarts 1990-91 300SL 6.0 Liters 6.3 Quarts 1992 600SEL 7.7 Liters 8.1 Quarts * Add specified quantity. With engine at operating temperature, shift transmission through all gears. Check fluid level in PARK, and add fluid as needed
diesel TYPE AF(DEXRON-II (R) Automatic Transmission Fluid) CAPACITY, Initial Refill*: 1984-89 190D Diesel 5.5 Liters 5.8 Quarts 1984-85 300 Series w/turbo 6.2 Liters 6.6 Quarts 1986-87 300 Series Diesel 6.2 Liters 6.5 Quarts 1990-93 300D Diesel 5.5 Liters 5.8 Quarts 1990-91 350SD, 350SDL Diesel 6.2 Liters 6.6 Quarts 1992-93 300SD Diesel 6.2 Liters 6.6 Quarts * With engine at operating temperature, shift transmission through all gears. Check fluid level in PARK, and add fluid as needed

Fluid - M/T: Fluid Type Specifications
The manual transmission models M50D; Borg-Warner T-18 and ZF model S5-42 each use Motorcraft MERCON© Multi-Purpose Automatic
Transmission Fluid XT-2-QDX or DDX (ESP-M2C166-H) or equivalent.

There should be a drain plug near the bottom of the transmission, the plug should be removed by inserting a 3/8" ratchet in the hole on the plug. Drain the oil.

There should be a similar plug higher on the transmission case, remove this and fill from there.

automatic takes dexron VI or equivalent like synthetic V

Five-Speed Manual Overdrive Transmission (Ford Manual Transmission) Motorcraft MERCON® Multi-Purpose Automatic Transmission Fluid XT-2-QDX or -DDX (E4XZ-19582-B) or Equivalent




the above are ford part #'s listed from the service manual.
ps your 4 thumbs up is appreciated!

Transmission
fluid
Motorcraft SAE
75W-90 gear oil
(non-synthetic)
Manual transaxle 3.0 quarts
(2.87L)3
Motorcraft FNR5
Automatic
Transmission
Fluid
5–speed
automatic
transaxle
7 quarts (6.7L)4
Premium
Automatic
Transmission
Fluid
6–speed
automatic
transaxle
7.4 quarts
(7.0L