C4 transmission
Team Owner
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It will NOT work - you need for the simplest straight forward exchange a '93 or earlier and it needs to have the correct (or close) out-put-shaft length. Other considerations maybe - but the '95 is a no go unless this '84 is heavily modified and if it is I believe you might have already known - what will and what won't!
Last edited by WVZR-1; Apr 9, 2016 at 09:56 AM.
Thread Starter
7th Gear
Joined: Apr 2016
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84 C4 transmission.
It will NOT work - you need for the simplest straight forward exchange a '93 or earlier and it needs to have the correct (or close) out-put-shaft length. Other considerations maybe - but the '95 is a no go unless this '84 is heavily modified and if it is I believe you might have already known - what will and what won't!
Le Mans Master
Joined: Jun 2009
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From: South Dakota
In the Corvettes the exchange would be a '93 or earlier like WVZR-1 stated. In '94 they went to the electronic controlled version. I don't know, but I suspect the Caprice/Impala transmissions made the change the same year.
In addition, only the Corvette transmissions have the mounting for the C beam. You may be able to swap the tail housing to another transmission if the lengths are the same, but you need to check that out.
Good luck.
In addition, only the Corvette transmissions have the mounting for the C beam. You may be able to swap the tail housing to another transmission if the lengths are the same, but you need to check that out.
Good luck.
Team Owner
Joined: Sep 2003
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Op - You mention the car is seemingly "modified" and to what extent might be the next most important question. The 4L60e requires electronic control but there are stand-alone controllers available. There might be many questions that need to be asked regarding the one from the '95 B-body. MUCH -
Can you use it? Depending upon the transmission out-put shaft length the extension could be theoretically transferred from yours to allow the install BUT again you need to know much more about the transmission you're considering. It actually could be (not stock to the B-body) a 2-piece case with a six bolt extension and create issues. In the '95 B-body it wouldn't have been an issue but for you I'd say yes.
Best I'd think to source an '87 or later 700R4/4L60 - you don't want an earlier than '87. The newer the more likely to have the later updates.
Can you use it? Depending upon the transmission out-put shaft length the extension could be theoretically transferred from yours to allow the install BUT again you need to know much more about the transmission you're considering. It actually could be (not stock to the B-body) a 2-piece case with a six bolt extension and create issues. In the '95 B-body it wouldn't have been an issue but for you I'd say yes.
Best I'd think to source an '87 or later 700R4/4L60 - you don't want an earlier than '87. The newer the more likely to have the later updates.
Race Director
Joined: Apr 2003
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From: moraga ca
The 95 Impala 4l60e has a one piece tailshaft so one from a Vette could be swapped out. Cut 5/8" off the tailshaft and it will be a boltin. I am using a 4l60e from a full body, You will need an aftermarket transmission controller. I am using a TCI unit. To me, a controller is a lot easier to use compared to changing governor weights and springs. It's easy to dial in part and full throttle shift points. An added advantage is line pressures can be adjusted to give a softer shift when driving normally or a hard shift at the track. Go for it. Your car is highly modified, another one won't matter. 
Race Director
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From: moraga ca
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Drifting
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From: Reno Nevada
Race Director
Joined: Apr 2003
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From: moraga ca
I knew it was a complement. I am soft and special so it did hurt a little. ******* are really special. Everyone should have a programmable controller by the way.
Last edited by 383vett; Apr 10, 2016 at 04:05 PM.
Thread Starter
7th Gear
Joined: Apr 2016
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Thanks to everyone on here for your advice and input.
Now I have a good idea of what to do. I think from what I'm hearing, is that I can cut off 5/8 from the tail shaft and get a stand alone controller for it. I do know this transmission from my wrecked 95 SS impala has the mechanical TV cable. And it has been completely rebuilt. I just got the 84 C4, and don't know all of what has been done to it. I do know it now has center bolt heads, hi-rise intake, Holly Carburetor, a complete MSD ignition, headers, and a nice sounding Cam.
Now I have a good idea of what to do. I think from what I'm hearing, is that I can cut off 5/8 from the tail shaft and get a stand alone controller for it. I do know this transmission from my wrecked 95 SS impala has the mechanical TV cable. And it has been completely rebuilt. I just got the 84 C4, and don't know all of what has been done to it. I do know it now has center bolt heads, hi-rise intake, Holly Carburetor, a complete MSD ignition, headers, and a nice sounding Cam.
Team Owner
Joined: Sep 2003
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The OP says he "KNOWS" his '95 has a mechanical TV, maybe he'll show us. A snapshot or two might be good. A snapshot of the left side and the right side could be interesting.
Thread Starter
7th Gear
Joined: Apr 2016
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Now I'm being told my 95 impala as transmission is probably a 4L60E.. Not a 700R4,,,, I got the car from a friend after he wrecked it. He had just had the transmission completely rebuilt. He told me it was as a 700R4.. I think I'm just gonna pull the motor and transmission out and start from scratch. How do I identify the type of transmission I have?
Thread Starter
7th Gear
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Thank you.. The impala transmission is in the car. I bought the whole car. You said the 88 up is better,, up to what year do I look? 88 to what year?? If I'm only gonna use the 84 vett for weekend driving, how would a old turbo 350 or 400 work?
Team Owner
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A Corvette through '93 is the more desirable. Newer always better.
Much depends maybe on what was used in "the build" of the car "as you bought it". You need to ID what's in the car first, both engine and transmission. I'd start with the engine suffix ID from the right block pad in front of the cylinder head. The modifications to and the lack of understating of the TV likely is the cause of the failure that got you where you're at.
The carb & TV cable need proper install and adjustment. YOU MENTION STUCK - "hints" not done CORRECTLY!!