What’s this Connector

[87silveradok20]

It’s under the dash and has a pink/black wire and a purple wire


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[Honky Kong jr]

It’s under the dash and has a pink/black wire and a purple wire


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Here is his pic tapatalk is being a dick

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@1987 GMC Jimmy im looking in your direction here

 

[87silveradok20]

I also have figured out that the pink/black wire has power when the ignition is on


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[gmachinz]

Cruise control switch off the bracket above the accelerator pedal

 

[foamypirate]

Cruise control switch off the bracket above the accelerator pedal

It's on the cruise control switch, but it's used for TCC shutdown when on the brakes, isn't it? Or maybe I'm just confusing myself, since that's what I'm using it for on my LS swap.

 

[gmachinz]

It's on the cruise control switch, but it's used for TCC shutdown when on the brakes, isn't it? Or maybe I'm just confusing myself, since that's what I'm using it for on my LS swap.

Correct.

 

[chengny]

It's on the cruise control switch, but it's used for TCC shutdown when on the brakes, isn't it? Or maybe I'm just confusing myself, since that's what I'm using it for on my LS swap.

Yeah, that's right. And it's only necessary with 700r4 (MD8) applications:

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[87silveradok20]

ok, so since I have a th400 it is not needed?

 

[1987 GMC Jimmy]

Nope, TH400s don't have lockup.

 

[Honky Kong jr]

Nope, TH400s don't have lockup.

Just a whole bunch of tire burnin reliability

 

[rpcraft]

Not sure about tire burning with that taller first gear but they are reliable. Does anyone know if when they made the 4l80E they kept the same first gear ratio or did they match it to the 4l60E?

 

[74 Shortbed]

4L60E= 3.06 1.62 1.00 0.70 2.29

4L80E= 2.48 1.48 1.00 0.75 2.08

 

[Honky Kong jr]

Not sure about tire burning with that taller first gear but they are reliable. Does anyone know if when they made the 4l80E they kept the same first gear ratio or did they match it to the 4l60E?

A TH400 and a4L80 have the same ratios up until OD

 

[smoothandlow84]

4L60E= 3.06 1.62 1.00 0.70 2.29

4L80E= 2.48 1.48 1.00 0.75 2.08

Ask and ye shall receive !!!

 

[malibuman402]