[toolzguy]

Looking for the first & last year applications for these two transmissions; the earliest I see for the A250 is 1964, any info you may have is most appreciated!

 

[ImperialCrown]

Welcome to Allpar. Sorry it took so long for me to dig out the book.
I have a Motor manual the lists the A-250 (non-synchro 1st gear) from 1962 to 1974. The fully synchronized A-230 was a relief from crunching 1st gears from 1974-on. The applications may have overlapped in production and the A-230 been an option during the early-'70's overlap.
I don't know when the A-230 ended as the book was a 1977 edition and I remember the base Volare column shift 3-speeds then. It may have been available in the truck applications until the early 1980's?

 

[toolzguy]

Thanks much for your information. Does your Motor manual list other gearbox applications? If so can you provide the full name of the book?

 

[ImperialCrown]

The 1976 Motor Truck Repair Manual covers the 'Own Make' (New Process) transmissions for the lighter duty Dodge/Plymouth A/B vans and D/W pickups. These A-230/A-250 transmissions were basically passenger car-type transmissions. They mention an A-390 and refer you to the 3-speed trans. 1963-75 in the Ford chapter.
It also covers the heavy-duty Dodge truck transmissions like Fuller, Clark, Spicer and Warner. I don't know how specific a model application you need.
It gives basic rebuilding procedures and exploded component views. You may still be able to find a manual like this at a large public library in the backroom storage 'stacks'. Call or ask your librarian.
Similar to this book:

http://www.ebay.com/itm/1973-1982-Motors-Truck-Repair-Manual-American-trucks-and-Farm-Tractor-Engines-/121060680006?hash=item1c2fc76146&item=121060680006&pt=Motors_Manuals_Literature&vxp=mtr