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Old 02-21-2007, 08:23 AM
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New To Turbo 400 Trans

Hey guys,

I am new to the automatic world I usually have 4 speeds. Recently I purchased a 1970 Monte Carlo with a Turbo 400 trans and I know nothing about it. I can't seem to locate much on the web and I am looking to you for answers.

Does anyone have any pictures detailing the trans itself and what is what. I know based on the pan shape that is is a turbo 400. On the drivers side of the trans about half way back just above the pan is a lead sticking out with nothing attached. What is this, is it the kick down solenoid? I don't know. So if any of you could help me in any way I would appreciate it. A diagram or picture listing individual parts would be great.


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Old 02-21-2007, 03:09 PM
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the lead is the kickdown, yep

an orange wire attached to it from the kickdown switch mounted to the throttle or to the pedal

i can pic mine i have sitting in the back entry way if you want, its an '87 tag code LJA from a C-10 pickup, its technically called 3L80HD(TH475)
3L80 was the non HD 400

if yours doesnt have a raised HD cast onto the bellhousing anywhere then it is a regular TH400

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