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

84 auto to manual

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Old Oct 26, 2013 | 03:42 PM
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Default 84 auto to manual

Hi I am looking into changing the trans in my 84. I am needing to find what manual trans will bolt to the stock engine and what I will need as far as drive train parts, I know I will need a master and pedal assembly but need to find out what else is involved. My grandfather owns a fab shop so work is not an issue as many will say sell it and buy a manual. this car has sentimental value so out of the question.

Thanks in advance
Adam
**What can be used beside the zf6 trans?

Last edited by Bridges77; Oct 26, 2013 at 04:04 PM.
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Old Oct 26, 2013 | 05:57 PM
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Obvious choice would be a C4 trans ; either the 4+3 that came in you car or the later ZF6.

Any other trans is going to require a custom mount for the C-Beam that supports the rear of the trans in place of a conventional trans x member
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Old Oct 26, 2013 | 06:12 PM
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Old Oct 26, 2013 | 06:53 PM
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The 4+3 was available for the 84, but you will need to do some wiring to make it work properly. Also, the shifter bolts to the body so it's possible that you may have to modify the trans tunnel to be able to bolt the shifter in place. The center console will be different too.

The ZF will work but it will cost more than the 4+3.

Keisler makes a very nice bolt-in 5-speed but figure on something like $3K and probably more by the time you get everything needed for the swap.

I'm not sure if the manual trans C-beams and driveshafts are different lengths compared to the A4, but you will need a front yoke specific to the trans.
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Old Oct 27, 2013 | 01:24 AM
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Ive read where some people have used t5 trans instead of the 4+3 any one on here done this. Looking for a cheap way to convert, don't care about value of the car or resale. Looking for somthing a salvage yard might have?
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Old Oct 27, 2013 | 03:06 AM
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Originally Posted by Bridges77
t5 trans instead of the 4+3
any one on here done this. ?
http://members.cisdi.com/~anesthes/f-car-t5/

Originally Posted by c4cruiser
I'm not sure if the manual trans C-beams and driveshafts are different lengths compared to the A4,
but you will need a front yoke specific to the trans.
DS and C-Beam only change with a diff swap
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Old Oct 29, 2013 | 10:18 PM
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Thanks for the help fellaz.
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