Asked in Chevy G20
Chevy G20

92 g20 Chevy 5.7 looking for trans code you were told code m30 was the code 4l60e but your build code in dash don't have m30 so what other code number could it be?

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Wiki User
01/12/2009

If it has overdrive, it's likely code MD8, or the 700R4/ non electronic 4L60. MD8 Automatic 4-speed transmission (THM700R4/4L60) Non overdrive, I'd assume a TH350/400. i dont understand