Hello. I picked up a '91 or '92 Truck 5 speed transmission w t/case off Craigslist. I don't have the VIN, but the seller thought the Truck it came off was a 91' or 92'. It does have a gear t/case. It also has 6 bolts holding the top shifter and the t-case shifter in the same pocket. I checked the front transmission bearing retainer and it has 7 bolts. Does that make this transmission a W series? If it was a G58, the input bearing retainer would have 8 bolts and the shifter retainer would have 4 bolts and the t/case would be chain instead of gears, right? I guess the next thing to do is pull the input bearing retainer and look to see what bearing is in it. If it's a W 56 C (89-91) the bearing will be 6307-N, HR6307-N, if it's a W 56 D (92) the bearing will be 35TM11UR, 35TM11NX1. I took some pictures, but I don't think I can post them up yet. Off Marlin's transmission page, it looks like a W 56D. Just trying to get it right and I guess I could use some help.