T56
Thread Starter
Pro
Joined: Dec 2004
Posts: 710
Likes: 2
From: Raynham MA
T56
Will a T56 form a C5 fit in a 76 L-82? I have a removable crossmember.
Do I have to:
1. move the shifter forward
2. cut the driveshaft down a few inches.
3. modify your cross member to let the tranny sit lower.
Anything else?
I see one online and I'm wondering if this requires less custom work than the Ford t5 ?
Do I have to:
1. move the shifter forward
2. cut the driveshaft down a few inches.
3. modify your cross member to let the tranny sit lower.
Anything else?
I see one online and I'm wondering if this requires less custom work than the Ford t5 ?
Team Owner
Joined: Feb 1999
Posts: 34,448
Likes: 664
From: Republic of Texas
Will a T56 form a C5 fit in a 76 L-82? I have a removable crossmember.
Do I have to:
1. move the shifter forward
2. cut the driveshaft down a few inches.
3. modify your cross member to let the tranny sit lower.
Anything else
I see one online and I'm wondering if this requires less custom work than the Ford t5 ?
Do I have to:
1. move the shifter forward
2. cut the driveshaft down a few inches.
3. modify your cross member to let the tranny sit lower.
Anything else
I see one online and I'm wondering if this requires less custom work than the Ford t5 ?
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
I have an LS based T56 in mine. It came from a 06 GTO. It is the same trans used in the Vettes but it is for the GTO and the the rear mounted Vette trans. The C5 and C6 T56 from Vettes will not work at all. The LS based T56 will fit but needs a spacer of about .400 but you can also buy a bellhousing from Quick time that is spaced correctly. It requires a ton of work to get it into the C3 body and if yo uare not skilled in this or have fab ability it is a rough install. I have a lift and capability to do this and it still took a while. There is no output for a cable driven speedo, reverse lockout wiring and lots more.
Team Owner
Joined: Feb 1999
Posts: 34,448
Likes: 664
From: Republic of Texas
I have an LS based T56 in mine. It came from a 06 GTO. It is the same trans used in the Vettes but it is for the GTO and the the rear mounted Vette trans. The C5 and C6 T56 from Vettes will not work at all. The LS based T56 will fit but needs a spacer of about .400 but you can also buy a bellhousing from Quick time that is spaced correctly. It requires a ton of work to get it into the C3 body and if yo uare not skilled in this or have fab ability it is a rough install. I have a lift and capability to do this and it still took a while. There is no output for a cable driven speedo, reverse lockout wiring and lots more.
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
I am using the same roller bearing i have used for the Muncie and the Tremec and the T56. the only thing is it needed a spacer to move it out a little. Like I said above I think the spacer is .400 thick. Other than that it is working. I am using the LS hydraulic style throwout bearing also
Thread Starter
Pro
Joined: Dec 2004
Posts: 710
Likes: 2
From: Raynham MA
Thanks guys.
So if I went with the t56 from a lt1, that would bolt right up to a standard chevy bellhousing (621) and my sm350?
Is a t5 out of a Ford less work to make it fit/work? I know with the ford I need an adapter between the trans and bellhousing. If it's 92 or older I can buy that adapter from wilcap.com. If newer, I'm not sure where I can get the adapter from.
So if I went with the t56 from a lt1, that would bolt right up to a standard chevy bellhousing (621) and my sm350?
Is a t5 out of a Ford less work to make it fit/work? I know with the ford I need an adapter between the trans and bellhousing. If it's 92 or older I can buy that adapter from wilcap.com. If newer, I'm not sure where I can get the adapter from.
Intermediate
Joined: Apr 2011
Posts: 44
Likes: 0
You have a ton of research to do. An lt1 t56 will bolt to an earlier style 350. However, make sure you get the right flywheel from centerforce if the motor is a 2pc style rear main seal. If its a 1 pc style motor that you have, go ahead and use the flywheel and everything. bolt and go. Obviously you will have to make some changes at the rear of the trans such as crossmember and driveshaft adjustments but its pretty straightforward. Not a swap for the faint of heart and time consuming making sure everything is perfect. google c3 t56 and start reading!!!! read til your head hurts and the wife is lonely, then read some more!
Thread Starter
Pro
Joined: Dec 2004
Posts: 710
Likes: 2
From: Raynham MA
Oh trust me. i'm driving everyone I know crazy with researching all kinds of 4, 5 and 6 speed transmissions...:-)
This is good to know, thanks. At this point I have an automatic 76 sb350 so I need everything. Just looking for the right transmission based on what's available.
This is good to know, thanks. At this point I have an automatic 76 sb350 so I need everything. Just looking for the right transmission based on what's available.
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Intermediate
Joined: Apr 2011
Posts: 44
Likes: 0
I would use a 94 to 97 lt1 t56 as the earlier 93 t56 had some goofy gearing in it. Get a centerforce flwheel and bolt that sucker in. A stock clutch on an lt1 can hold 400 hp but not much more. buy a clutch master cyl from a 1985 1 ton and you will have to modify it by cutting the shaft and threading it so its adjustable. reuse all of the other lt1 t56 stock clutch hydros. find pedals out of manual trans c3 that someone is selling move trans crossmember back (trial fit before mounting basically EASY) and have someone shorten your stock driveshaft. also goin to either modify the trans tunnel or buy a shifter that is et to come up in the stock location instead of centered in the center console which leads to converting your console from auto to manual - lots mre reading but I think from here you should have no problems. Personally i would want to stay away from the ford trans as its 1 more step. Or call up Kiesler trannys and tell em what youre doing. They will send you a complete crate full of what you need.
Drifting
Joined: May 2005
Posts: 1,968
Likes: 44
From: East TN
Oh trust me. i'm driving everyone I know crazy with researching all kinds of 4, 5 and 6 speed transmissions...:-)
This is good to know, thanks. At this point I have an automatic 76 sb350 so I need everything. Just looking for the right transmission based on what's available.
This is good to know, thanks. At this point I have an automatic 76 sb350 so I need everything. Just looking for the right transmission based on what's available.
http://forums.corvetteforum.com/c3-t...aigs-list.html
Instructor
Joined: Mar 2010
Posts: 228
Likes: 0
From: Evansville WI
IIRC, the LT1/LT4 Corvettes used a ZF 6 speed, not the T56 that the F-bodys used. The ZF is physically larger, making it more work to fit. Internal parts are more expensive as well if they ever need to be replaced.
