Will a 904 tourqueflite transmission off of a slant six engine bolt to a 1985 Dodge slant six engine that had a 4 speed transmission in a D-100 truck the 904 came out of a 1966 Dodge A- 100 van?

Yes, a 904 TorqueFlite transmission from a slant six engine can be bolted to a 1985 Dodge slant six engine, as they share a compatible bellhousing pattern. However, you may need to address any differences in the transmission mount and drive shaft length due to the different vehicle models. Additionally, ensure that the torque converter and flexplate are compatible with the newer engine. Always verify the specific parts and configurations for the best fit.