Difference in 3 speed manual transmissions Truck/car ?????

How do you identify the full synchro three speed? Can an older transmission be modified to full synchro?

No you can not convert. Read the shop manual, and you will soon see the differences If you don't have one/ them download at MyMopar for free

The 69 book in section 21 shows the A903 and A745 (light and heavy duty non synchro low) and the 72 book shows the A903 and A230 which is the all-synchro

A90369.jpg

A74569.jpg

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