Can the wrong speedo gear cause.....

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03-24-2008, 09:14 PM

IROCmenace

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Car: 1988 IROC

Engine: L98

Transmission: 700R4 Silver Dart

Axle/Gears: 3.70 posi

Can the wrong speedo gear cause.....

88 5.7TPI 700R4

Can the wrong speedo gear combo cause kickdown issues? I have noticed at speeds around 45-60 it won't kick down into second. I can pull it into second and still have alot of RPM before a shift point.
My speedo is about 20 mph off i.e. it reads 60 when I am doing 40. Trans locks up on time though.
I just haven't had time to take the tailshaft off and put in the correct drive gear.

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03-25-2008, 11:33 PM

IROCmenace

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Join Date: Aug 2002

Location: Tennessee

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Car: 1988 IROC

Engine: L98

Transmission: 700R4 Silver Dart

Axle/Gears: 3.70 posi

Re: Can the wrong speedo gear cause.....

Anyone? I searched several times. I can only come up with posts concerning lockup.

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03-25-2008, 11:39 PM

sofakingdom

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Car: Yes

Engine: Usually

Transmission: Sometimes

Axle/Gears: Behind me somewhere

Re: Can the wrong speedo gear cause.....

No.

Kickdown is entirely mechanical & hydraulic. No electronic function involved at all.

Read the full "TV System 101" article here. All however many pages it is nowadays.