G'day Victa125 :)
Yes, they made an auto in 83, it would have been a chrysler 727 3 speed unit, very strong auto, so you Vin No would read something like SALLHAMV3A, then A if UK built or F if an Aust CKD unit followed by serial number probably like 131*** (1983 was 131430-to-1430400) year model code until 1984 was "A"
But, if the number after the V is 1, then it may have been built as a manual and converted to an auto later.
Hope that is of help :)
cheers

