J.r. Patton Posted July 8, 2013 Report Share Posted July 8, 2013 I have a 91 cutlass supreme International... Im needing a tranny.. BUT how do I know if its the 4T60 or the 4t60e? I know its a 4 speed with the 3.1 engine. Also if anyone has a good tranny thats relatively close to OKC.. Let me know.. Quote Link to comment Share on other sites More sharing options...
Imp558 Posted July 9, 2013 Report Share Posted July 9, 2013 Along the passengers side on the back of the tranny is a plate held on by a clip, it's a bitch to get to but it has numbers that you can cross reference to tell exactly what it is and what gear ratio and all. This is the coolest 4TXX tranny I.D. resource I've ever seen: http://www.gmtuners.com/transmission/ Quote Link to comment Share on other sites More sharing options...
AL Posted July 9, 2013 Report Share Posted July 9, 2013 The 4t60e didnt start till 93 I thought Quote Link to comment Share on other sites More sharing options...
White93z34 Posted July 9, 2013 Report Share Posted July 9, 2013 in 1991 the 4t60e was only available with the 3.4 DOHC in w-bodys. Quote Link to comment Share on other sites More sharing options...
RobertISaar Posted July 9, 2013 Report Share Posted July 9, 2013 yeah, for W applications, only the LQ1 had it for 91-92. 93, the 3.8, 3.1 and 3100 got them. also, the early W 4T60E were oddballs compared to everything else that got them... the rest all started off with TCC PWM, 4 circuit PRNDL decoder, etc.... everything that took a few years to make it to the W platform models. Quote Link to comment Share on other sites More sharing options...
J.r. Patton Posted July 10, 2013 Author Report Share Posted July 10, 2013 well from the vin and the dealership says its the 4T60E. Quote Link to comment Share on other sites More sharing options...
RobertISaar Posted July 10, 2013 Report Share Posted July 10, 2013 here's a quick pictoral guide of the transmission connectors: 3T40 4T60 4T60E Quote Link to comment Share on other sites More sharing options...
Hairdo12 Posted July 10, 2013 Report Share Posted July 10, 2013 1991 3.1 is without a doubt a 4t60 non E. just look at the Trans pan, it should be stamped very large, can't miss it. Quote Link to comment Share on other sites More sharing options...
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