could an early 26 have a 25 motor and trans
Originally or recently??
Model year for a 1926 started in August 1925. So yes maybe half the 26 cars and trucks were built in 1925.
If you are asking about the blocks with the two extra mounting bosses on the rear and the transmission that mounts to it, I would say probably not. I have seen the last week of production of the years model 25's with the newer improved blocks and transmission. Ford did start using the newer blocks in the last 25's.
I should have said clearer that the 26 T's should not have the old motors installed in them.
In Canada I have a picture taken in '25 of a new T with 26 body but with the small drum rear axle. This was a brand new car on the start of a famous trip with Ford sponsorship. I have seen quite a few original cars with small drum axle but with the late transmission (and then with a earlier block which is probably a replacement). The transition cars can be confusing. Especially the 4 door closed cars seem to often have the small drum rear axle
My "barn fresh" 26 Tudor sedan has small drum brakes and 30x3-1/2 wheels. Of course, the original family drove this car clear until the mid 50s, so??? Unfortunately, no one is left in the family to tell me all about it. The only reason I got the car is the only one in the family who had an interest was a nephew who wanted to drop a big engine in it, etc. The Uncle knew me, and said, "I know you will keep it original!" So he practically "gave" it to me (yes, money changed hands, but for about what the body itself would have sold.
So, another question: What is the dating for the large drum rear axles? And what about the 21" wheels--I do believe there was a lot of carry over, including non-demountable, metal felloe wheels on the bottom-line models (no starter, battery, etc.)
I was lucky I got to talk with a 93 year old gentleman and he said that the farmers would order the 30x3-1/2 because they liked the taller rim and tires
I have been told often that the 1926 model was the last model for which 30x3 1/2 or 30x3 tires/rims could be ordered. Original literature supports this. I do believe that there were some 1927 model Ts that came equipped with the older style wheels and tires.
The Ford plants must have had a "left over" stock and it would seem that a dealer could arrange a special order. Also they could have been installed at the dealership.
I have a 26 Fordor with small drums. Found this out when I ordered 26 big drum brakes. So cut the linings down to fit.