Transmissions Interchangable?
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Transmissions Interchangable?
Hello,
I am considering purchasing a 92 Explorer with "transmission problems". The vehicle moves but has major slips in all gears. This could be as simple as fluid levels all the way up to (worst case) transmission replacement. I have a 91 Explorer with several upgraded mechanical parts to use as a parts truck (the 92 has a way better body) and need to know if the transmissions are interchangeable.
Ford says they are not but is less than forthecoming with information as to why (I had both VIN's checked by Ford). I'm certain my 91 has an A4LD and Ford says the part number for the 92 is TRM 196.
Any thoughts or comments?
Thanks,
Gil
I am considering purchasing a 92 Explorer with "transmission problems". The vehicle moves but has major slips in all gears. This could be as simple as fluid levels all the way up to (worst case) transmission replacement. I have a 91 Explorer with several upgraded mechanical parts to use as a parts truck (the 92 has a way better body) and need to know if the transmissions are interchangeable.
Ford says they are not but is less than forthecoming with information as to why (I had both VIN's checked by Ford). I'm certain my 91 has an A4LD and Ford says the part number for the 92 is TRM 196.
Any thoughts or comments?
Thanks,
Gil
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From everything I've seen, any A4LD from '85 to '94 will "fit." Over the years, Ford tried to make internal improvements to the A4LD. '91 was the first year for Explorers and the 4.0, so I expect they made several changes from '91 to '92 to make it more reliable in the heavier vehicle behind the stronger motor. But these would all be internal changes. That '91 transmission should go into your '92 without any problems. Just make sure the '91 transmission is in better shape than the '92 before going to the trouble.
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Mr. Shorty,
That is what I had thought.
My 91 transmission has been serviced and "cared for" regularly for 210,000 miles and seems to be going strong. I will do what I can with the 92 but my last option would be a tranny swap and I wanted to make sure that I could exercise this option if I need to go that route. If I needed to buy new or from a wrecker I would pass on the 92 and wait for another opportunity.
From what I know about these units they are both vacuum systems and the electronic shifts (tied into the PCM) did not come in until post 94, correct?
Thanks for your help,
Gil
That is what I had thought.
My 91 transmission has been serviced and "cared for" regularly for 210,000 miles and seems to be going strong. I will do what I can with the 92 but my last option would be a tranny swap and I wanted to make sure that I could exercise this option if I need to go that route. If I needed to buy new or from a wrecker I would pass on the 92 and wait for another opportunity.
From what I know about these units they are both vacuum systems and the electronic shifts (tied into the PCM) did not come in until post 94, correct?
Thanks for your help,
Gil
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Joined: Dec 2001
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From: UT
The A4LD (post '88 anyway) uses electronic controls for the 3-4 shift and torque converter lockup clutch. 1-2 and 2-3 shifts are vacuum controlled. '95 introduced the fully electronic 4R44E (aka A4LDE in some texts) to the Explorer line-up.
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Mr Shorty,
I don't want to beat this thing to death but when I asked Ford for a filter kit for my truck earlier this year they sold me a kit for a 4R55E. I had given them the VIN and they said this was the correct kit. My transmission was refered to as an A4LD by another Ford dealer (and Haynes). The "old" bolt that holds the filter to the transmission was too long for the new filter (althought the filter shape was fine). I had to make a spacer to torque down the bolt.
Anyway...
If you have the information can you go through for me the transmission models from 91 through 95 and any relevant changes year over year?
Thanks much,
Gil
I don't want to beat this thing to death but when I asked Ford for a filter kit for my truck earlier this year they sold me a kit for a 4R55E. I had given them the VIN and they said this was the correct kit. My transmission was refered to as an A4LD by another Ford dealer (and Haynes). The "old" bolt that holds the filter to the transmission was too long for the new filter (althought the filter shape was fine). I had to make a spacer to torque down the bolt.
Anyway...
If you have the information can you go through for me the transmission models from 91 through 95 and any relevant changes year over year?
Thanks much,
Gil
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Joined: Dec 2001
Posts: 3,742
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From: UT
'91-'94 automatics used the A4LD. There were minor imporvements made from year to year, which I'm not intimately familiar with, but there's an ATSG manual that details the upgrades if you want to look into it. '95 used the 4R44E (aka A4LDE) which is essentially the same transmission as the A4LD only with all electronic controls. Somewhere along the line, they switched from a screen to a real filter for the 4R44E transmissions. All the transmissions in the A4LD family (A4LD, 4R44E, 4R55E, 5R55E) use the same filter as I understand it, and a good filter is better than a screen in this application, so they've stopped selling the screen in favor of the microfelt filter. The transmission filter kits I've bought included that spacer in the kit. Not sure why you didn't get one.
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