Dirty Rockstar Posted July 21, 2004 Report Share Posted July 21, 2004 I have the 4 spd. w/ OD.. I think its the 4T60.. Also, how hard is a 5 speed swap on my 90 Lumina? My tranny is goin, and if I need to replace it, a 5 speed is goin in.. Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted July 21, 2004 Report Share Posted July 21, 2004 Yes, yours is the 4T60. Quote Link to comment Share on other sites More sharing options...
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