T-5 Transmission questions
Thread Starter
2nd Gear
Joined: Apr 2004
Posts: 2
Likes: 0
From: St Paul MN
T-5 Transmission questions
I was thinking of putting a T5 in my '76. What year T5 is best? I know there was a post on this earlier, but I couldn't find it. Also what needs to be done as far as the crossmember, driveshaft etc. Thanks, Pat
Drifting
Joined: Jul 2002
Posts: 1,254
Likes: 1
From: Edinburgh
T56 is stronger.
Try doing a search on Tremec, you will find plenty of threads. Here's one of the last.
http://forums.corvetteforum.com/show...ghlight=Tremec
Try doing a search on Tremec, you will find plenty of threads. Here's one of the last.
http://forums.corvetteforum.com/show...ghlight=Tremec
Melting Slicks
Joined: Jul 1999
Posts: 3,030
Likes: 17
From: White Pine / Dandridge TN
Originally Posted by crazypat
I was thinking of putting a T5 in my '76. What year T5 is best? I know there was a post on this earlier, but I couldn't find it. Also what needs to be done as far as the crossmember, driveshaft etc. Thanks, Pat
Le Mans Master
Joined: Aug 2000
Posts: 6,362
Likes: 7
From: Brazos TX
Cruise-In IV Veteran
Cruise-In V Veteran
Check out Dave's web site http://home.comcast.net/~ddecart/Transmission.html
This is about what I'm planning to do. If you have more questions then Norval and Dave (ddecart) should be able to answer them. I think Dave was using a Cobra spec T-5 but Norval used a normal world class T-5.
This is about what I'm planning to do. If you have more questions then Norval and Dave (ddecart) should be able to answer them. I think Dave was using a Cobra spec T-5 but Norval used a normal world class T-5.
Le Mans Master
Joined: Nov 2004
Posts: 6,128
Likes: 21
From: North Alabama
Originally Posted by crazydalys
I think you need a hydraulic clutch?
Stay with an 88 or later V8 GM tranny with 26 count fine spline. These are World Class units...
Last edited by Jclgodale3; Mar 24, 2005 at 11:44 AM.
Melting Slicks
Joined: Jul 1999
Posts: 3,030
Likes: 17
From: White Pine / Dandridge TN
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Le Mans Master
Joined: Nov 2004
Posts: 6,128
Likes: 21
From: North Alabama
Originally Posted by Frankenvette
just found this website... http://www.5speeds.com/t5/index.html
Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Mine is in the car but I need to fab up a trans bracket and figure out a shifter configuration. As you can see it bolts right up to the stock vette bellhousing (think I had too massage a bolt hole), ths shifter does not come up through the stock shifter hole so a midified shifter or shifter plate is needed. I would not recomend this trans for a high torq motor with sticky tires but for a peppy sb it sould be an economical choice, think I have about $600 invested total so far.
Melting Slicks
Joined: Jul 1999
Posts: 3,030
Likes: 17
From: White Pine / Dandridge TN
Originally Posted by Fevre
Mine is in the car but I need to fab up a trans bracket and figure out a shifter configuration. As you can see it bolts right up to the stock vette bellhousing (think I had too massage a bolt hole), ths shifter does not come up through the stock shifter hole so a midified shifter or shifter plate is needed. I would not recomend this trans for a high torq motor with sticky tires but for a peppy sb it sould be an economical choice, think I have about $600 invested total so far.
Le Mans Master
Joined: Nov 2004
Posts: 6,128
Likes: 21
From: North Alabama
Originally Posted by crazydalys
I'm pretty sure the driveshaft needs to be shortened, and I'm not sure about the speedo cable?
Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Originally Posted by Frankenvette
I've been reading your post on this for awhile. Hope you get it running soon.
That 26.5 length sounds about right, think I did 26 3/8.
BTW You can use the TH350 take apart yoke from your vette.
Melting Slicks
Joined: Jul 1999
Posts: 3,030
Likes: 17
From: White Pine / Dandridge TN
Originally Posted by Jclgodale3
Thats a great site with some great tips for building and had updated gearsets available as well as rebuild kits...good source
Le Mans Master
Joined: Nov 2004
Posts: 6,128
Likes: 21
From: North Alabama
Originally Posted by Frankenvette
Glad you liked it. How did you make the crossmember mount for the tranny? What bellhousing are you using? Isn't the T5 normally mounted at an angle in a Fbody? Also, how about the shifter... does it sit centered in the shifter console, or does that need modification as well?
Melting Slicks
Joined: Jul 1999
Posts: 3,030
Likes: 17
From: White Pine / Dandridge TN
Originally Posted by Jclgodale3
I used a srock GM 403 bellhousing. This sits the T5 upright (unlike how it sits in the F Body). I used 1/4" steel plate mounted to the original crossmember and out to the new T5 mount. The original 4 speed plate wouldn't work. Yes, the shifter will need mods to get it over to the left and back some. Best idea is to get an aftermarket 2 peice shifter that you can fabricate your own offset to set the shifter in the stock console. (if this is your desired outcome)
Any chance that you took some close up pics of the crossmember mount before you actually mounted the tranny on it? I would love to see exactly what you made. Also, could you post a schematic of the mount you made. This has been on of the reasons I have not aggressively pursued the T5 option. I'm not very good at fabrication nor do I have access to the needed tools. I do have a neighbor who can help.
Team Owner
Joined: Aug 1999
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The "strongest" T-5 is the Ford Racing version which is rated at 330 ft lb (continuous for 24 hours). That's the one that I used. There are kits for T-5's (GM or Ford) that should increase their rating to something well above that. What I found was that the cost of the kits & rebuild was more than I would have spent for a brand new Ford Racing T-5, so I went the Ford route.
Burners linked to my picture page up above. I have a full writeup on how to do the swap that I'm attaching here. With a Ford, you need an adapter plate, a reworked trans mount, and a shorter driveshaft (among other things!).
Burners linked to my picture page up above. I have a full writeup on how to do the swap that I'm attaching here. With a Ford, you need an adapter plate, a reworked trans mount, and a shorter driveshaft (among other things!).
Melting Slicks
Joined: May 2001
Posts: 2,131
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From: May help you? You can sure as hell try!
Awesome write up, Dave! Very creative mixing of Ford and Chevy parts! It's hard enough to get a Ford part from one year to fit another year Ford, let alone make a Ford part fit a Chevy. What I really want to know is, how many different combinations of pieces you tried until you got something that worked? 
Don't know if I'll ever do a T5 install because my 427 would exceed the torque rating, but I downloaded your paper for future reference anyway, 'cause ya never know. Might be handy for a C3 driver for my son or something like that.
Don't know if I'll ever do a T5 install because my 427 would exceed the torque rating, but I downloaded your paper for future reference anyway, 'cause ya never know. Might be handy for a C3 driver for my son or something like that.