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

T56 to replace 4 x 3.

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Old Jul 11, 2014 | 05:52 AM
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Default T56 to replace 4 x 3.

Hi all. Has anyone done this conversion? If so, how did you go hooking up speedo to digital dash? Also, how far out was shifter to original hole? Thanks for any feedback.
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Old Jul 11, 2014 | 06:03 AM
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Originally Posted by Austvet
Hi all. Has anyone done this conversion? If so, how did you go hooking up speedo to digital dash? Also, how far out was shifter to original hole? Thanks for any feedback.
There are numerous install threads and resolutions for problems encountered. The search function here works pretty well.

Here's a link to a few and you can move on from there:

http://forums.corvetteforum.com/sear...rchid=41768762
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Old Jul 16, 2014 | 02:26 AM
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Originally Posted by WVZR-1
There are numerous install threads and resolutions for problems encountered. The search function here works pretty well.

Here's a link to a few and you can move on from there:

http://forums.corvetteforum.com/sear...rchid=41768762
Ok thanks. Does anyone have the email address for Pro Street Customs as I'm chasing this t56 to c beam bracket? Thanks
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Old Jul 22, 2014 | 03:53 AM
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Hi again. Was given heads up on Tommys Speed Shop as a supplier of adaptor from member off here. I've emailed them twice with no response. Pro Street Customs apparently sell an adaptor also but I cannot find them. Does anyone have the email address for them. Getting frustrated trying to get an adaptor when I'm on other side of the world!! Any help appreciated.
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Old Jul 22, 2014 | 03:56 AM
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See if this helps
http://forums.corvetteforum.com/c4-t...fo-wanted.html
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Old Jul 22, 2014 | 04:01 AM
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and this
http://www.digitalcorvettes.com/foru...d.php?t=154261
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Old Jul 22, 2014 | 04:04 AM
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and maybe this
http://forums.corvetteforum.com/c4-t...-searched.html
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Old Jul 22, 2014 | 04:10 AM
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Here is a nice Bracket
http://members.cisdi.com/~anesthes/f-car-t5/
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Old Jul 22, 2014 | 04:14 AM
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All that work and the trans really wont handle much
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Old Jul 22, 2014 | 04:24 AM
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Not that much if I can get this bracket. Car already has ls1. 4x3 is a slipping piece of garbage. Anything would be an improvement!
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Old Jul 22, 2014 | 09:15 AM
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Dude I handed u a T56 Pro-Street Custom Bracket Photo and their Internet address in the last link and all u have to do is read the link and punch it into the Internet but anyways
Here is their link
http://www.prostreetcustomsinc.com/index.asp
and when u get sick of replacing 2nd & 3rd gears have them build ya a bracket and a spacer bushing for the Bulletproof A-833-4-spd to be used behind 85-91 GM factory truck conversion bellhousing

Last edited by cudamax; Jul 22, 2014 at 09:23 AM.
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Old Jul 22, 2014 | 09:29 AM
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Pro-Street-Machine Shop
http://www.prostreetcustomsinc.com/cnc-machine-shop/
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Old Jul 22, 2014 | 09:46 AM
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CBEAM ADAPTER:
Pro Street Customs
216-316-9812
http://www.prostreetcustoms.net/CorvettePage.html
ATTN: Tom
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Old Jul 23, 2014 | 03:48 AM
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Thanks 'dude' but when I clicked on your link and sent them an email, I received a reply from Bob Alford saying they don't do this bracket. Then sent Tommys speed shop 2 emails with no reply. So any other suggestions! Maybe they just scared!
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Old Jul 23, 2014 | 10:15 AM
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Do u go to their Machine Shop page and put in an job order for the bracket. They r open and taking orders. I'd say do that right away online. R u sure u can't make one if not go around to machine shops right by u with the photos I've given u and start doing that too and I'll check around and get back to ya
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Old Jul 23, 2014 | 10:54 AM
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If pro customs didnt save their cnc program for the bracket so they can whip 1 up fast you are just going to have to make one or leave it the way it is or maybe go to a auto
This guy did a nice job Check it out
https://www.corvetteforum.com/c4-tec...p-started.html
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Old Jul 24, 2014 | 01:54 AM
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Originally Posted by cudamax
If pro customs didnt save their cnc program for the bracket so they can whip 1 up fast you are just going to have to make one or leave it the way it is or maybe go to a auto
This guy did a nice job Check it out
https://www.corvetteforum.com/c4-tec...p-started.html
Thanks. I emailed your link again but was told its someone with similar name but def not him. Looks like making one here the go.
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Old Jul 24, 2014 | 02:11 AM
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Originally Posted by Austvet
Thanks. I emailed your link again but was told its someone with similar name but def not him. Looks like making one here the go.
Tommys speed shop are advertising they have them. I'm gonna have to get up early and phone them as they not replying to emails. If you can get hold of one, I have a friend of friend who lives in Florida who will freight it to me. After I pay u for it of course!
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Old Jul 24, 2014 | 02:17 AM
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Dude sorry I gave wrong contact Info This is off their site Call them I bet they still have that bracket saved in a cad program to blast off on their CNC machine They do what they call Jobber Work just means Small **** They have done them and I bet will still sell it Just call them and or go to their site and click on their machine shop fab link and put in an order and instead of showing them drawings give them the links and photos I gave ya and Fax them too. Just do that and You'll get ur bracket and be on ur way to destroying 2nd and 3rd gears in that thing. because thats what goes on them
They really can't handle the Torque
http://www.prostreetcustomsinc.com/c...treet-customs/
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Old Jul 24, 2014 | 08:47 AM
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Originally Posted by Austvet
Hi all. Has anyone done this conversion? If so, how did you go hooking up speedo to digital dash? Also, how far out was shifter to original hole? Thanks for any feedback.
Do you have a trans yet? Check out this thread in C4 General. It looks like this is a new company that has purchased everything from Keisler.

It looks like both the TKO-500 and TKO-600 transmissions are available and it's a complete bolt-in swap.
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