Just bringing this back up to the top and posting what box came on my 2001 built on 09-15-00. I got a Delphi box that has cast on the top "26078664"
There is a sticker on top with two numbers; "P52113500AF" and "TNG2520A1881" The number ending in AF appears to be the part number as inferred from the other posts. So I would say that the Delphi box is the "AF" box.
Steering is OK, but as I posted a couple of weeks ago, seems to require a fair amount of input while driving. I wouldn't exactly call it a wander, maybe more like a little input goes a long way, so I am constantly trying to recover from that. Seems to track straight with zero input, and is very tight, no play at all. After driving for about 600 miles total so far, I am getting used to it. Last weekend I drove the Grand Am, which I consider(ed) to have good steering. Man, I was all over the lane, maybe it is just what a fellow gets used to????? Maybe I am imagining things on the RAM based on the preconceived notion that it WOULD wander??
Shelby
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2001 2500 QC LB 4WD, ETH, DEE, 3. 54 gears, Laramie SLT, Camper Special, Trailer Tow, Travel Convenience Group, Power Driver Seat, Alarm System, Remote Keyless Entry, Fog Lamps, Cab Clearance Lamps, HD Transfer Case, Bright White with a Gray Interior. Took delivery on 10-06-00. Coming soon: E-Brake and a custom aluminum work body / flat bed.