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Old 10-11-2010, 01:21 PM
jwwoodsman jwwoodsman is offline
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700r 4 tcc sol wiring

The 3-4 gears went out on my 88 gmc 8700 r 4. Fluid is burnt black. I installed a used tranny from the junk yard. The shift shaft bracket was different. I changed that to my origanal one. I pulled the pan to install a new filter and the wiring had been cut out. I double checked with the tranny I pulled out. The one pulled out has a white electrical plug on right side behind the TV cable. Inside it has one plug in switch and 2 round switched before the wiring ends up at the tcc sol. The newest installed has the white connector behind the TV cable but has 4 round switches. The last one sits over the tcc Sol. I do understand that my truck,88 GMC 1500 4x4 auto, comes with 2 motors and two trannys that are interchangable in any fashion. Can anyone give me any insight into this electrical part? I want to get a new one at the dealer but am unable to answer a lot of questions on the tranny. Any diagrams?

many thanks,
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