Tranny ID
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Tranny ID
I just picked up a 2002 super cab 4x4 with a 5.4l auto trans with overdrive can any one tell me what trans is in it and what kind of fluid to use or are there multiples. Thanks for the help.
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Senior User
Joined: Aug 2010
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I found some info. Does it look right?
Model: 4R70w
Type: Four speed, Rear wheel drive, and 70(x10)lbs of torque
Years: '94-'07 F-150
Engines: {302, 4.2L}, {4.6L, 5.4L}
Display: PRN(D)21 w/ overdrive lockout switch
Fluid: Mercon V
Ratios:
1st 2.84:1
2nd 1.55:1
3rd 1.00:1
4th 0.70:1
Reverse 2.32:1
Trans code: U
Model: 4R70w
Type: Four speed, Rear wheel drive, and 70(x10)lbs of torque
Years: '94-'07 F-150
Engines: {302, 4.2L}, {4.6L, 5.4L}
Display: PRN(D)21 w/ overdrive lockout switch
Fluid: Mercon V
Ratios:
1st 2.84:1
2nd 1.55:1
3rd 1.00:1
4th 0.70:1
Reverse 2.32:1
Trans code: U
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
The original fluid is speced as Mercon V.
Mercon V is being or has been phased out by Motorcraft and replaced by Mercon LV, the latest type for several years now.
If you cannot find Mercon V then look closely at fluids that that indicate they are a suitable replacement for Mercon V or go to a dealer and get the new LV.
Good luck.
Mercon V is being or has been phased out by Motorcraft and replaced by Mercon LV, the latest type for several years now.
If you cannot find Mercon V then look closely at fluids that that indicate they are a suitable replacement for Mercon V or go to a dealer and get the new LV.
Good luck.
Fleet Mechanic
Joined: Aug 2002
Posts: 1,900
Likes: 29
From: Raleigh USA
The original fluid is speced as Mercon V.
Mercon V is being or has been phased out by Motorcraft and replaced by Mercon LV, the latest type for several years now.
If you cannot find Mercon V then look closely at fluids that that indicate they are a suitable replacement for Mercon V or go to a dealer and get the new LV.
Good luck.
Mercon V is being or has been phased out by Motorcraft and replaced by Mercon LV, the latest type for several years now.
If you cannot find Mercon V then look closely at fluids that that indicate they are a suitable replacement for Mercon V or go to a dealer and get the new LV.
Good luck.
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
NO it is NOT wrong information!
When you cannot find Mercon V any longer what do you think your going to uses besides another Mercon V compatible brand or LV?
Last I checked Ford did not yet license it (LV) to other venders. it maybe by this time.
Further, I have a custom built 4r70 from a well known major performance shop that runs Mercon V. The builder when asked about this said use LV in it's place as it will be backward compatible with Mercon V but not III.
The major differences are the formulation vs the clutch packs and band lining materials plus lubrication qualities.
Good luck.
When you cannot find Mercon V any longer what do you think your going to uses besides another Mercon V compatible brand or LV?
Last I checked Ford did not yet license it (LV) to other venders. it maybe by this time.
Further, I have a custom built 4r70 from a well known major performance shop that runs Mercon V. The builder when asked about this said use LV in it's place as it will be backward compatible with Mercon V but not III.
The major differences are the formulation vs the clutch packs and band lining materials plus lubrication qualities.
Good luck.
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Tuned
Joined: Apr 2013
Posts: 354
Likes: 5
From: Katy, Republic of Texas
Yes, it is wrong information.
According to Ford:
Merc V will be around for quite some time, Ford just made it cheaper for aftermarket to make by dropping some of the certification requirements that were redundant (so hopefully that means cheaper Merc V for us).
Plus a little lube article on Merc LV, which also states not to use LV where V is the recommended fluid.
This being said, several aftermarket fluid makers are making universal ATF that is compatable with both Merc V and LV vehicles, so not sure how that works.
I actually am using some Valvoline MaxLife Synthetic ATF that has Merc LV certification, and was told by Valvoline it is safe for Merc V also. I have 4 qts in my transmission now with no ill effects (so far, knock on wood).
According to Ford:
Do not use in applications where MERCON® V, MERCON® SP (exceptTorqShift®), Continuously Variable Chain Type Transmission Fluid, Motorcraft® Premium Automatic Transmission Fluid, FNR5 Automatic Transmission Fluid or Type F Automatic Transmission Fluid is recommended, or in transfer cases
Plus a little lube article on Merc LV, which also states not to use LV where V is the recommended fluid.
This being said, several aftermarket fluid makers are making universal ATF that is compatable with both Merc V and LV vehicles, so not sure how that works.
I actually am using some Valvoline MaxLife Synthetic ATF that has Merc LV certification, and was told by Valvoline it is safe for Merc V also. I have 4 qts in my transmission now with no ill effects (so far, knock on wood).
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Fleet Mechanic
Joined: Aug 2002
Posts: 1,900
Likes: 29
From: Raleigh USA
Bluegrass you are wrong plain and simple. I work on these things for a living and have overhauled many transmissions. Mercon V replaced Mercon III in the early 2000s. Mercon LV is it's own fluid and does not interchange with Mercon V. I'm not going to argue over the internet. It's ok to be wrong but at least admit to it.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,739
Likes: 2,669
From: SE Florida
NO it is NOT wrong information!
When you cannot find Mercon V any longer what do you think your going to uses besides another Mercon V compatible brand or LV?
Last I checked Ford did not yet license it (LV) to other venders. it maybe by this time.
Further, I have a custom built 4r70 from a well known major performance shop that runs Mercon V. The builder when asked about this said use LV in it's place as it will be backward compatible with Mercon V but not III.
The major differences are the formulation vs the clutch packs and band lining materials plus lubrication qualities.
Good luck.
When you cannot find Mercon V any longer what do you think your going to uses besides another Mercon V compatible brand or LV?
Last I checked Ford did not yet license it (LV) to other venders. it maybe by this time.
Further, I have a custom built 4r70 from a well known major performance shop that runs Mercon V. The builder when asked about this said use LV in it's place as it will be backward compatible with Mercon V but not III.
The major differences are the formulation vs the clutch packs and band lining materials plus lubrication qualities.
Good luck.
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