Transmission ID
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5th Wheeling
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Transmission ID
1979 F250 4X4, 4 speed reverse right and down next to 4th. Tin tag on the top left with a ford symbol and D9T3 C8 stamped on the tag. Trans cover is cast not aluminum. Is this a T-19?
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From: S/W Missouri, Polk county
So here is a little info from a few years back.
"NP435 = aluminum top cover w/8 bolts
T-18 = cast iron top cover w/6 bolts
Warranty Plate (on the dvrs door edge) TRANS code: A = NP435 (N-1965 only) / F = Warner T-18 / P = F350 Warner T-19.
Warner shift lever retainer cap (8MTH-7220) threads on/off.
NP435 shift lever retainer cap (B8T-7220-D) has two notches, is retained to shift tower by two pins.
To remove this cap, it must be presseddownand helddownwhile turning it counter clock wise to remove it. (Its spring loaded and twists into place, we removed one and it was a 2 person job. Put the trans into 2nd, 4th, or reverse, then one person holds the cap and applies pressure, twisting in a counter clockwise direction. The other person hits it from the top with a hammer to get the cap to go in below the two clips that hold it in.) People unaware use pliers or channel locks to remove it, which tears out the pins.
Originally NP435: Reverse-down towards the seat while Warner T-18: Reverse-up towards the dash.
The reverse shift pattern was changed circa 1973, but I can't recall for which of these 4 speeds. ( I believe it the NP435)
Note:There's another 4 speed: RUG SR-OD Single Rail 4 Speed Overdrive introduced in 1978 F100/150 300/302, TRANS code B"
"NP435 = aluminum top cover w/8 bolts
T-18 = cast iron top cover w/6 bolts
Warranty Plate (on the dvrs door edge) TRANS code: A = NP435 (N-1965 only) / F = Warner T-18 / P = F350 Warner T-19.
Warner shift lever retainer cap (8MTH-7220) threads on/off.
NP435 shift lever retainer cap (B8T-7220-D) has two notches, is retained to shift tower by two pins.
To remove this cap, it must be presseddownand helddownwhile turning it counter clock wise to remove it. (Its spring loaded and twists into place, we removed one and it was a 2 person job. Put the trans into 2nd, 4th, or reverse, then one person holds the cap and applies pressure, twisting in a counter clockwise direction. The other person hits it from the top with a hammer to get the cap to go in below the two clips that hold it in.) People unaware use pliers or channel locks to remove it, which tears out the pins.
Originally NP435: Reverse-down towards the seat while Warner T-18: Reverse-up towards the dash.
The reverse shift pattern was changed circa 1973, but I can't recall for which of these 4 speeds. ( I believe it the NP435)
Note:There's another 4 speed: RUG SR-OD Single Rail 4 Speed Overdrive introduced in 1978 F100/150 300/302, TRANS code B"
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T-18 had the change, after the change in top covers from the earlier T-98 style. '79 is the change over, where reverse is "over and down".
https://www.novak-adapt.com/knowledg...anual/t18-t19/
The OD trans would not be OEM in an F250.
https://www.novak-adapt.com/knowledg...anual/t18-t19/
The OD trans would not be OEM in an F250.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
T-18's shift pattern changed mid-year 1974 = Reverse is down-towards the seat. Previous = Reverse was up-towards the dash.
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