Can someone help me identify this transmission. It's a spare that I picked up for my 1924 one ton truck. But it's different than all the early to mid 1920s Chev. transmissions I've seen. One obvious difference, there may be more but I only see the one. The filler on this transmission case is cast right into it at an upward angle instead of the usual pipe elbow screwed into the side of the case that angles up 90 degrees. The part number on this case is D 328650 B (not sure if the D and B are part of the number but they're on the same line as the numbers, cast into the side of the case. Why is this case different than all the rest of the early to mid 20s Chevrolet transmissions? Help!!! I would add a picture but don't know how.
I don't believe it Chev. Looks to be chassis mounted via the flanges. Several other makes did this like Star and Durant and had a coupling between the flywheel and tranny. The tranny was not directly attached to the engine. Having said this I do not know what this belongs to.
Could also be a secondary (splitter) box from a heavy hauler and only have forward gear set (no reverse). The square section input shaft has me puzzled as I have not seen that as original in any vehicle. Tony
Update on the I D of my early transmission. First off it's definitely for Chevrolet early to mid 20s cone clutch vehicles. I use the term vehicles because I don't know that it was specifically for trucks, but upon reviewing my own maintenance notes I found that this identical style transmission case was in my 1924 Model H one ton truck when I got it in the late 1980s, but a few months later while I was doing some maintenance work on the truck I noticed that the transmission had one of the mounting ears broken off so I replaced that transmission with one that I picked up from probably a swap meet and it was the more typical style with the pipe elbow screwed into the left side for adding gear oil. So......maybe my truck originally came with this style transmission case, I don't know any more than that, but this transmission is now in my truck and as soon as I get the rear end assy. back together (I had a bent rear axle so had to pull the rear end in order to fix it) I'll be back on the road. The reason for the transmission replacement is that the one that I put in all those years ago has always popped out of second gear on acceleration, and since I had to pull the rear end to fix the axle, I figured that would be a good time to replace the transmission. Ed Archer
I'm sorry I think my eyes are failing me. On closer look in my repair manuals it shows Model G, 490, early Superior (23/24), Model FA and Model T as having the tab mount like this tranny. I don't have a diagram of the H.
