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You need to find out what transmission model you have - either it's a 4L60 (most likely) or a 4L80. 1992 was the last year they used mechanical transmissions - anything newer than 1992 will have the electronically controlled 4L60E.

You would want either a 700R4 transmission from 1984 - 1989 or a 4L60 (essentially the same transmission) from 1990 - 1992.

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12y ago

What else can I help you with?