Group Buy Feeler: T56 Stage 2 Rebuild Kit
02-18-2013, 06:16 PM
#22
well, i guess if its needed and apparently holds 800rwhp and no other tranny can be dumped into the vehicle when i planned to just run with stock and blow it up, and doesn't require a machine shop for the rebuild kit, im in.
02-18-2013, 07:51 PM
#23
I'm still chatting with some of the experts that the experts call about the gearing. I'll let you know when I'm perfectly satisfied with their answers. In the meantime, read this:
http://www.eecis.udel.edu/~davis/z28..._Fbody_T56.pdf
http://www.eecis.udel.edu/~davis/z28..._Fbody_T56.pdf
Thats a good read. Sounds like we are kind of screwed for alot of those upgrades. Unless we change our tail housing, then switch to a slip yoke drive shaft which will have to be custom as it will be shorter. Then modify the shifter to work. It would not be bad if the tail shaft shift pocket lined up with the V's shifter location.
02-18-2013, 08:03 PM
#25
TECH Fanatic
Thats a good read. Sounds like we are kind of screwed for alot of those upgrades. Unless we change our tail housing, then switch to a slip yoke drive shaft which will have to be custom as it will be shorter. Then modify the shifter to work. It would not be bad if the tail shaft shift pocket lined up with the V's shifter location.
The TR6060's come up from time to time for pretty cheap...I've seen take outs with 3k miles for around $1200 or so. That would be about the best thing you could do in terms of an upgrade since we are stuck with the V1 specific mainshaft.
Granted, a TR6060 would not be a one for one swap, but should be pretty close to lining up. Barring that...i'm still in for the rebuild kit.
02-18-2013, 08:33 PM
#26
Or you could get a V2 or Camaro TR6060 and bolt it up. The V2 would have the ratio's that Fuzzy is looking for anyhow (2.66) where as the Camaro has a slightly shorter ratio selection than what we currently have (3.01 vs 2.97).
The TR6060's come up from time to time for pretty cheap...I've seen take outs with 3k miles for around $1200 or so. That would be about the best thing you could do in terms of an upgrade since we are stuck with the V1 specific mainshaft.
Granted, a TR6060 would not be a one for one swap, but should be pretty close to lining up. Barring that...i'm still in for the rebuild kit.
The TR6060's come up from time to time for pretty cheap...I've seen take outs with 3k miles for around $1200 or so. That would be about the best thing you could do in terms of an upgrade since we are stuck with the V1 specific mainshaft.
Granted, a TR6060 would not be a one for one swap, but should be pretty close to lining up. Barring that...i'm still in for the rebuild kit.
http://www.cadillacforums.com/forums...0-upgrade.html
Last edited by FuzzyLog1c; 02-18-2013 at 08:42 PM.
02-18-2013, 09:03 PM
#27
TECH Fanatic
There are a few that have had the 6060 internals swapped in their T56 for some reason...and that's upwards of $5k. There are a lot of things in the 6060 that the T56 will never have...such as a stronger case, larger bearings throughout, integrated trans fluid pump with directed discharge onto the bearings/gears, stronger mainshaft, etc.
The T56 is a well built unit, but for those that require something stronger the 6060 is the way to go since we are limited by our dedicated mainshaft.
Edit: That link you posted was about having 6060 internals swapped into a T56 case, which has never made much sense to me. For that much $$$ it makes sense (for us anyhow) to get an actual 6060 and make that work...which is feasible since the Camaro and V2 6060's are within about 1" of our OE T56 and they have the same output shaft flange on them.
Camaro used take outs come around every now and then and usually go for somewhere between $1200 - $2500, which isn't bad at all.
The T56 is a well built unit, but for those that require something stronger the 6060 is the way to go since we are limited by our dedicated mainshaft.
Edit: That link you posted was about having 6060 internals swapped into a T56 case, which has never made much sense to me. For that much $$$ it makes sense (for us anyhow) to get an actual 6060 and make that work...which is feasible since the Camaro and V2 6060's are within about 1" of our OE T56 and they have the same output shaft flange on them.
Camaro used take outs come around every now and then and usually go for somewhere between $1200 - $2500, which isn't bad at all.
Last edited by DMM; 02-18-2013 at 09:12 PM.
02-19-2013, 08:28 AM
#28
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I'm interested. If anyone in the area is rebuilding theirs I would love to help/watch/learn. I would like to rebuild mine just to get some smoother shifting but it is hard to tell what is worn without taking it apart first (and having my DD down for a week or so while I wait in the needed parts).
02-19-2013, 08:37 AM
#29
2.66 gear swap thoughts from M. Davis:
When I asked whether the Stage 2 kit was worth the cost, he said:
The T56 gear sets are all-in-one, meaning if you change one gear, you have to change all. If someone wanted a 2.66 CTSv T56, then every gear, countershaft, and input would need to be swapped with those from a base C5 2.66 T56. This would also require removal of the dual mass flywheel, clutch, and extended pilot bearing as the C5 input is 1/2" longer. So it's possible, but could be very expensive.
The late model triple/double cone blockers have twice the friction and blocker rings as the older double/single blockers and add most the cost (only GM used them also, so you don't get the mfg supply of Ford/mopar/etc in the costs either).
If you know the blocker rings (metals) are good in the unit, you can save some $ buy requesting the friction rings only. The modern frictional also wear less than the older models and can be reused in some instances, but you have to check them all and not worth paying labor to do it.
If you know the blocker rings (metals) are good in the unit, you can save some $ buy requesting the friction rings only. The modern frictional also wear less than the older models and can be reused in some instances, but you have to check them all and not worth paying labor to do it.
Last edited by FuzzyLog1c; 02-19-2013 at 08:44 AM.
02-19-2013, 09:08 AM
#31
I get all of my T56 parts from The Gear Box. They are great to deal with and are willing to help you when no one else will.
I have done the above mods and then some to my T56's. THE MOST IMPORTANT THING is that you set up the tolerances correctly. This is what makes them more capable of withstanding the high HP/TQ numbers. Not only that but it will shift smoother and last longer. Get the shim kit and set it up a little on the tight side.
I have done the above mods and then some to my T56's. THE MOST IMPORTANT THING is that you set up the tolerances correctly. This is what makes them more capable of withstanding the high HP/TQ numbers. Not only that but it will shift smoother and last longer. Get the shim kit and set it up a little on the tight side.
02-19-2013, 09:24 AM
#32
The gearing I can live with, the car is a heavy biotch after all. I would just like a transmission that will hold 6-700tq and shift nice while doing it. I realize the linkage is crap, and i have done as many bandaids that are currently available for it. Which made shifting acceptable, but I know there is more to be had by the internals. So again, this group buy is well worth the upgrade, I'm just hoping for an awesome price (hopefully since it is a DIY mod). I also love the fact that Fuzzy is doing all the leg work on these groupbuys! And I learn more everyday. Thank you sir! One day My V will be an absolute beast, partly due from you!
02-19-2013, 09:59 AM
#34
For the cost though.....I may wait until (if ever) I break 1st gear. Then I will be justified in going that route. But with this upgrade an the 600tq# it will be hard to break the transmission. I know of stock T56's doing 10 second runs (all be it with 3200-3500 pound cars) with out breaking. So to break 1st IMO you will need alot of hp and alot of traction along with a clutch dump at high RPM (no slipping at all). Which is a beating most are not going to do in the V. It is not a car for drag racing. So breaking it doing roll runs and road courses is going to be very, very hard. Besides when you climb to the higher hp and tq #'s be prepaired to pay the higher $ #'s as well. Gotta pay to play.
02-19-2013, 12:19 PM
#35
as for the tranny swap to a tr 6060. it can be done but the bellhousing isnt removable like a t56. a better option for us is the t56 magnum with the camaro tr6060 tail housing for a remote shiftier.
the t56 mag is basically the same as the 6060 but with a removable bellhousing(same as t56) and no internal oil pump and can be had all day from many places for 2900$ brand new with no core.
the t56 mag is basically the same as the 6060 but with a removable bellhousing(same as t56) and no internal oil pump and can be had all day from many places for 2900$ brand new with no core.
02-19-2013, 01:16 PM
#37
Runsfromdatcops -
Is this what you are referring to?
http://www.summitracing.com/parts/cm...1010/overview/
How would this fit in a Gen I v? what would require changing?
Is this what you are referring to?
http://www.summitracing.com/parts/cm...1010/overview/
How would this fit in a Gen I v? what would require changing?
http://www.tremec.com/menu.php?m=104
700flbs per tremec (under rated)
much larger shafts,gears and barings
much better shifting feel
much better syncros, but less forgiving to a missed shift the a t56
it is the same dimensions as the t56 thats in our cars but its much shorter so youd need to fab a drive line and probably mod the newer camaro remote shifter to fit. this is the route im going when my t56 blows up
hope this helps
02-19-2013, 01:57 PM
#39
are you thinking its wider? how could it be if it has the same bellhousing as the t56?
every thing i have read(i have done a **** load as this is what i plan on using in my car) seems to point at it being the same size as a t56.
every thing i have read(i have done a **** load as this is what i plan on using in my car) seems to point at it being the same size as a t56.
02-19-2013, 03:41 PM
#40
TECH Enthusiast
Here is a pretty good article on the T56 magnum. It looks like RPM transmissions has a solution, although costly.
http://www.gmhightechperformance.com...y/viewall.html
http://www.gmhightechperformance.com...y/viewall.html