Wow thanks for the knowledge. I've got some more pride in my rig now. Guess I shouldn't worry to much about it.Tad said:The 4cyl did get a better transmission, with one exception: it had to be running to be in 4wd. This is a trivial defect but it almost smooshed me once. We were snow-wheeling and had parked on a gradual slope for lunch. I had it in 4wd and park. A few minutes after we parked the Trooper started sliding forward. I was standing in front of it. Enough of us were standing there to stop it. What had happened was that the front wheels rolled and the back ones slid. Because the engine wasn't running it wasn't in 4wd.
The 4cyl auto transfer case also sticks down a little bit more than the mau5 or 4l30E one does.
Low range is lower in them though, and they are very tough, and I'd take those two features in exchange for the slight ground clearance difference.
That transmission was used in several forms in many Toyota vehicles. The 4-runner, some Lexus SUV and the Supra. Apparently the Supra version was converted to a 5-speed by having the computer shift from 1 to 2 to 2 with OD (3rd) to 3 (4th) to 3 with OD (5th). The Isuzu goes 1,2,3,3+OD.
All versions were electronic. The Toyota ones used a mechanically shifted t-case instead of the Hydraulic one that Isuzu used. The Isuzu one was called the A340H where the H was for Hydraulic.