TOD gear ratios
#1
#2
I found the ratios but I'm not so sure that it is correct since the difference between 2-3 feels much bigger than that. I have one of these in my truck and honestly I'm not a fan and will be replacing it as soon as I can find a suitable replacement.
1st - 3.25
2nd - 1.92
3rd - 1.00
4th - .78
R - 3.25
1st - 3.25
2nd - 1.92
3rd - 1.00
4th - .78
R - 3.25
#4
#5
The TOD is a 4 speed toploader style version of the old SROD series of Overdrive transmissions. They were a light duty transmission with an aluminum case that was used behind the big six and the small block V8s.
The T19 is a heavier duty transmission that was very similar to the T18 transmission used primarily in the F250 and up trucks. The T18/19s generally had a granny low and a final ratio of 1:1. The main difference between the 18 and the 19 is that the 18 does not have synchros in first or reverse where the 19 is fully synchronized.
The T19 is a heavier duty transmission that was very similar to the T18 transmission used primarily in the F250 and up trucks. The T18/19s generally had a granny low and a final ratio of 1:1. The main difference between the 18 and the 19 is that the 18 does not have synchros in first or reverse where the 19 is fully synchronized.
#6
After I posted this, I went researching, Yes, the TOD is different than a T19.
But the differences between a T18 and a T19 are not just that all four gears are synchronized. T19's in Ford trucks were close ratio, If they were in International Harvester trucks, they were Wide ratio (granny gear 4sp). The T19 used by Ford for life behind f150-f450 trucks had 1st gear ratio of 4.1:1 and 4th gear ration of 1:1, So right, no overdrive, but it drives alot like one. and not a granny gear trans. Granny gear T18's and IH T19's were 6.32:1 1st gears.
But the differences between a T18 and a T19 are not just that all four gears are synchronized. T19's in Ford trucks were close ratio, If they were in International Harvester trucks, they were Wide ratio (granny gear 4sp). The T19 used by Ford for life behind f150-f450 trucks had 1st gear ratio of 4.1:1 and 4th gear ration of 1:1, So right, no overdrive, but it drives alot like one. and not a granny gear trans. Granny gear T18's and IH T19's were 6.32:1 1st gears.
#7
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