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89 C4 Doesnt Have Overdrive Knotch

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Old Apr 19, 2017 | 07:07 PM
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Default 89 C4 Doesnt Have Overdrive Knotch

I just bought a 89 C4 with auto transmission.It only shifts 3 knotches( 1,2,D)then goes into neutral.I thought it should shift 4 knotches 1,2,D,OD,then neutral.The shift dial goes between D & OD,then neutral.There is a gap between the clear plastic dial lens and console plastic.So possibly transmission and console aren't original and have been changed???
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Old Apr 19, 2017 | 07:19 PM
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Originally Posted by joeC4_89
I just bought a 89 C4 with auto transmission.It only shifts 3 knotches( 1,2,D)then goes into neutral.I thought it should shift 4 knotches 1,2,D,OD,then neutral.The shift dial goes between D & OD,then neutral.There is a gap between the clear plastic dial lens and console plastic.So possibly transmission and console aren't original and have been changed???
Does it look like this
https://corvetteparts.com/item/lens-...atic-1984-1989
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Old Apr 19, 2017 | 07:35 PM
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Yes
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Old Apr 19, 2017 | 07:45 PM
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Originally Posted by joeC4_89
Yes
This is what the Shiftier it self should look like, you may want to get under the car. Disconnect the Shiftier cable and count the notches to see if you have right amount down below that nothing is interfering with it's movement , and check the cable adjustment.
It would be very ODD not having the correct shiftier.

http://www.ebay.com/itm/C4-Corvette-...-/142349452548

Last edited by s carter; Apr 19, 2017 at 09:28 PM.
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Old Apr 19, 2017 | 09:42 PM
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What do you think the possibilities are that the car has the wrong ,non-overdrive transmission?
Or do you think it could be out of adjustment?
It should shift into drive and overdrive right?
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Old Apr 19, 2017 | 09:45 PM
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I'm going to check the number of bolts on the transmission pan soon to confirm what type of transmission it might be.
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Old Apr 19, 2017 | 10:15 PM
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Originally Posted by joeC4_89
I'm going to check the number of bolts on the transmission pan soon to confirm what type of transmission it might be.
With NOT paying attention to the Shiftier just driving down the road how many times does the car shift, Does it have Torque Converter lock up Once top gear is found. I have a feeling that you have all your gears but if you pulled the shiftier from a dead stop all the way to first you would have 2 shifts, That is what the shiftier see as 1st is really 2nd. (adjustment problem)

The Chances you not having the same type of trans that came with car not likely. Since the Tail shaft has the mount for the "C" beam on it and I don't Know if you could just bolt it onto a Turbo 350 or 400

Last edited by s carter; Apr 19, 2017 at 10:25 PM.
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Old Apr 21, 2017 | 09:44 PM
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My bet is on shifter linkage misadjustment and you're not getting all the way down into 1st.
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