91' and 93' tranny

The 1st half of '91 trucks had the 727 tranny which is a 3spd, no overdrive or lockup. The '91.5 and later trucks have the a518, which is basically the same as the 727 but is has overdrive.
'89-'91=727
'91.5-'93=a518
 
yeah i got an intercooled one so its got the od just didnt know if the one out of my 93 was the same...
 
Yeah, they're the same... I can't think of any differences.
 
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