Pretty sure it is the same frame as the third generation T233, T273, T293. The fourth generation and T25 have a whole lot of parts interchangeability. I ordered the rear remote kit for my T233. The packaging listed the T234, T264 and T25. It bolted right onto the top of my transmission.
Next time I was at the dealer, I looked at a T25. Seemed really similar to my T233. So, I downloaded the parts manual for the T25. I opened up both manuals as pdfs. I'd look up a part number for the T233 and then look for that part number in the T25 parts book. Only difference in the transmission is the case, and that part number varies by a letter on the end. Everything internal on the transmission and the axles that I looked at is the same. Hydraulic line from the transmission to the hydraulic pump has one line different.
Fenders are different. And the levers are a bit different. But that could just be the color-coded handles on the newer ones. The ROPS hoop is the same.
I bought my T233 because the thing most likely to wear out is the engine, and Mitsubishi S3L engines are relatively inexpensive to work on or replace. And the buddy who owned it moved to California and sold it to me for a screaming deal of: $7500 for the Tractor, freshly rebuilt 20-ft Equipment trailer, a SSQA set of forks, a rear blade, landscape rake, a
ballast box, and a three-point trailer hitch.