Rangers from 85 up to 94 did indeed use the A4LD - but after 94 there are some radical changes. The 95 and 96 used an electronic version renamed the 4R44e. This eliminated the vacuum modulator and replaced it with electronic controls. 97 and newer used the 5R55e - which is essentially the same MECHANICALLY, but is now a 5-speed unit. Many internal changes. Thrust washers are replaced with Torrington needle bearings. Direct clutch feed is reworked for better performance. O/D unit in front of case has been reworked. Clutch linings are of different composition, and are now directional. Overall, essentially the same basic shell, but evolved and updated. You can interchange the A4LD units between the different engines, but there ARE internal differences. The 2.3 unit has less clutch plates in the forward and direct clutch packs. The bellhousing bolt patterns are different, but the bellhousings are interchangeable. Using an older A4LD with a newer vehicle will result in some compatibility problems. To make it work would require addition of a vacuum line for the modulator and linkage for the kickdown. Then, the computer would throw fits as it was expecting to control the transmission and shift points, but there are no sensors for same. Overall, best to stick with matching the proper unit to the engine and vehicle. Trying to substitute can lead to opening a very large can of worms. Best to check with an expert as to what will work well and what won't.
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I�m handing him tools and he says, "give me that..." and I�ve already got it in his hand or "hand me that....."and I�ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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