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Refill automatic transmission fluid Transit 2.5D 1991

Transit Mk3, 4 & 5(smiley front) Forum. All Transits 1986 - 2000

Refill automatic transmission fluid Transit 2.5D 1991

Postby Elroy » Mon May 18, 2026 9:46 pm

Due to a leak at the tailpiece of my automatic transmission, I have the feeling that there is far too little or perhaps no oil left in the gearbox... I would like to have a specialist look at it, but I would like to top it up a bit before I make the trip there...

I have already been looking for a dipstick and/or filler opening, but I cannot find one. I also just can't figure out what kind of gearbox it is. I don't see a plate or a number or anything like that anywhere. There is a number on the tailpiece, though: P950T 7A040 AAR with R3T9A. 6575 underneath.

Transit 1991 automatic
2.5D (engine 4c* 52kW)
VIN: WF0CXXGBVCMD66587


Does anyone have an idea...?
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Re: Refill automatic transmission fluid Transit 2.5D 1991

Postby metalworker0 » Mon May 18, 2026 11:54 pm

will be a 4R70W / or 4R75W transmission

put those into google

and id yours with the pics


all the best.mark
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Re: Refill automatic transmission fluid Transit 2.5D 1991

Postby metalworker0 » Tue May 19, 2026 3:11 pm

think i was right the first time -- i deleted thinking it was not related .. but .. now think it is .

A4LD transmision
https://www.therangerstation.com/tech/f ... nsmission/

its a ford ranger ,.. but your not going to find discussion here on it because of the rarity ,... common in Usa

and how to check level from google AI

https://www.google.com/search?q=a4ld+tr ... +oil+level

All the best..mark
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Re: Refill automatic transmission fluid Transit 2.5D 1991

Postby Elroy » Tue May 19, 2026 3:42 pm

Thanks for your reaction!

So it is a a4ld? Pretty important to know the exact type because i need to refill with right atf.
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Re: Refill automatic transmission fluid Transit 2.5D 1991

Postby metalworker0 » Tue May 19, 2026 7:49 pm

well its kind of hard

see yours is a 91 right on the change over date

the mk4s had a4lds and c3's 1985 - 91

the mk5s had just a4lds 1991-94

the onus is in your hands to look at pics and work out what it is.

acording to my reasearch same oil in both
Mercon/Dexron III


all the beast.mark
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