'96 computer isn't compatible with '96 3-2 control solenoid.ġ996: The 3-2 downshift strategy was changed to an on /off arrangement. '94 computer won't recognise new TCC strategy., and will burn lock-up clutch and 3-4 clutches up. Has holes in plate, marked in diagram below. Front pump internal passages different to match new TCC strategy. It has a 12 pin case connector, extra wire in the transmission to computer harness and different computer to control the new PWM circuit. An extra solenoid was added to the valve body to control the pulsed lock up strategy of the conerter clutch. 1st design 3-2 valveġ995: Stand alone year! Will not interchange with any other year. Plate has holes in plate, marked in diagram below. 1 piece TCC control valve in the valve body. This means that the lock up apply strategy is an on /off arrangement. Not available in F-Bodies, B-Bodies, or Vettesġ994: Interchangeable with '93 4L60E with no modifications. When a converter cluych cause it to lose lock up, the 3-4 clutches, in the transmission will soon follow because the 3-4's need lock up to keep them cool while cruising in overdrive.ġ993: These were used in TRUCKS only. The big issues become forced 3-2 downshifts, and converter lock up issues and burnt lock up clutches. Yes, some years will fit in others and may not even throw a code, but there will be an issue in the long run. None of the '93 -'97 4L60E's are directly interchangeable, except '93 and '94 and '96 and '97!!! Here's a list of yearly differences that will show you why.
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