C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

stick to auto?

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Old Jun 6, 2008 | 07:13 PM
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Default stick to auto?

When I change my stick shift car over to an auto what will have to be changed? THANKS Pipe
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Old Jun 7, 2008 | 09:09 AM
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Why not just sell the stick - and buy an auto? Manual Trans bring a premium price - they are more desireable/harder to find - so why not sell it - you could probably upgrade in terms of mileage/ years/ condition! There have been several people here who simply swapped cars because of the transmissions!

Carl Johansson
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Old Jun 7, 2008 | 10:11 AM
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Transmission, driveshaft and pedals. If it is a 94-96, then you have the electronic transmission for a4's and that adds a lot more complexity.
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Old Jun 7, 2008 | 01:45 PM
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you may want to do a search on just the oposite and see what others are buying to go to a manual. I know that has been done by a few on here. Im interested myself, the second car in my signature, I would like to eventually convert it to an automatic, but I will probably go with a 350 instead of the 700.
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Old Jun 7, 2008 | 01:52 PM
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Originally Posted by Carl Johansson
Why not just sell the stick - and buy an auto? Manual Trans bring a premium price - they are more desireable/harder to find - so why not sell it - you could probably upgrade in terms of mileage/ years/ condition! There have been several people here who simply swapped cars because of the transmissions!

Carl Johansson


Listen to this guy. It is a better way of doing it.
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Old Jun 7, 2008 | 03:43 PM
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Thanks guy's for the reply's It's an 88 Vette that will see limited street use and alot of Bracket racing that's why I want to go Auto. THANKS Pipe
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Old Jun 7, 2008 | 03:55 PM
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For bracket racing, I'd rather to the swap, instead of buying an auto car. The D44 will allow you to run sticky tires with more hp.
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Old Jun 7, 2008 | 06:05 PM
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You need to change just the front yoke of your driveshaft. You will need the kickdown cable from the same year car.
Need:
Tranny
converter
dustshield
coolant lines and cooler
auto yoke
Auto brake pedal (optional)
auto center console and light harness
Auto shifter and cable.
Kickdown cable
Way to mount shifter. I graphted a peice of auto tunnel to mine.
Lock-up controller if wanted. I used a B&M.

You need to wire up the reverse lights and nuetral switch to the shifter, as well as the lights for the shift plate. It's really not a hard job to do at all.
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Old Jun 7, 2008 | 09:52 PM
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If changing from a 4+3 to auto can use same yoke; is same 27 spline .
If only a bracket car then can use aftermarket shifter (B&M ) and rework manual console.
As stated ,the tunnel cutout for the original shifter needs plating over or auto tunnel section grafted in
so as to mount new shifter..
email for pics
vetteoz@optusnet.com.au

You can even use a non Vette T700 core (cheaper ) if rebuilding for track work with a Vette tailshaft housing.(may need output shaft trimming )

Last edited by rodj; Jun 7, 2008 at 10:01 PM.
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Old Jun 7, 2008 | 10:43 PM
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I just converted an 86 from auto to 6 spd. richmond. call me ill buy your std shift parts, pedals,etc.
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Old Jun 8, 2008 | 07:56 AM
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Is the c-beam the same for both apps?
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Old Jun 8, 2008 | 08:16 AM
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C beam length is related to diff , not trans.
you only change the beam if swapping diffs
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Old Jun 8, 2008 | 06:07 PM
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Thanks guy's for the replys when I start wrenching on her I'll let ya know whats for sale or trade. Pipe
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Old Jun 8, 2008 | 06:36 PM
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The easiest way is -- Take my Auto & I'll take yours -- simple
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Old Jun 8, 2008 | 06:49 PM
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if your interested in coming to nc for a few days, I will gladly swap you my 91 700r4. (12k miles with papers) you can take all the parts from mine and i will take yours.
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Old Jun 14, 2008 | 06:43 PM
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Will I have to change the ECM or Wiring Harness? Pipe
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Old Jun 14, 2008 | 11:22 PM
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Originally Posted by pipe
Will I have to change the ECM or Wiring Harness? Pipe
The main difference in the tune, auto v stick is to do with the TCC .
You would need to get someone to burn a chip with the correct programming for the lock up.
Good time to do all the other chip mods; change fan on / off temps , remove VATS , adjust tune to suit your intended use.

Obviously you need the wiring to the plug on trans and some wiring for the overide switch on brake pedal as well as the neutral start switch on shifter..Minor stuff for the mechanical inclined.
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To stick to auto?

Old Jun 14, 2008 | 11:26 PM
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If you were to do a 4th gear only lock up, no ecm changes would be required. Another option on pre 88 transmissions is a hydraulic lock up valve can be easily installed. 88 and up does not have the bore drilled in the v/b, so it is not an option to hydraulicly lock converter.
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Old Jun 15, 2008 | 12:00 AM
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Default Easy as can be

Its actually very easy. I have a 86 with a 96 motor and auto tranny run by a 96 manual trans. dash. Works better thatn everyone said it never would. Just for kicks the engine harness is for a manual ac but the dash is auto ac and works great.
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Old Jun 15, 2008 | 06:27 PM
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Thanks guy's when I get down to business on this thing i'm gonna be askin some more????? THANK YOU Pipe
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