ls1247

iTrader: (2)

As my car has just north of 230K on it, I know I'm facing a transmission rebuild at some point in the not so distant future.

Based on that, I bought a spare V1 transmission off the forums recently so I can plug and play. It seems a transmission failure in one of these could keep me in a rental for at least a week so having a spare seems like a good investment.

But then I see this...

http://www.ebay.com/itm/Tremec-6060-Cadillac-CTS-V-Transmission-/301642130748?hash=item463b45a53c&vxp=mtr
Looking at this, you can see that the shifter works directly on the internal shift rail which simplifies the shift linkage significantly and, with the positive reports I'm hearing about the V2 shift quality, this could be a worthwhile upgrade if you have the time to fool with it.

It looks like this would require one of these....

http://www.ebay.com/itm/09-13-Cadillac-CTS-V-OEM-6-Speed-Rear-Driveshaft-Drive-Shaft-Assembly-6-2L-/251734203218?hash=item3a9c871b52&vxp=mtr
but it wouldn't hurt my feelings to get rid of the flex disc...Modifying the length of the shaft is a scary proposition with the number of vibration related issues we're seeing on this car but who knows, if this shaft were too short, machining an adapter to make up the difference could work. Anybody know how long the V2 driveshaft is? Yes Nik, I tried a search.

Obviously, the shifter would need reconstructing but as I have a spare V1 t56 laying around complete with shifter base and crossmember, fabing this up wouldn't be to difficult.

The money could make sense on this as I could easily drop 2k on a trans overhaul if something fails internally. I should be able to resell the V1 t56 for about the same cash..

This would require a new clutch...what would work here? Would the flywheel need to be swapped and is the PMC able to operate whatever needs to go in here? Wonder if the factory line would still work? Anybody know if the sensors would play nice?

What am I overlooking here...

NIKDSC5

iTrader: (10)

I believe this has been talked about before, but.....I can't find it or you would have got the standard response. The PMC will work just fine. The clutch should be easy. For sensors I'd imagine some connectors would need to be changed and that's about it. Fabbing up the mount should be realatively easy. Two hurdles would be the shifter, and the drive shaft. Shifter you're on your own. Drive shaft is kinda easy too. Once you have the trans in give DSS a call and they can fab something up quick and easy. Just not cheap.

ls1247

iTrader: (2)

About the only tr6060 swaps I've heard of was a camaro unit that killernoddle swapped.

The output shaft on those is the same but the camaro trans is 2" longer than the v1 trans so he had to do some mods. Also, IIRC, the tr6060 was physically bigger than the t56 which made things difficult so at the end of the day, he said he would have kept the t56 if he was doing it over again.

But the camaro also has the same shifter setup as the V1 so I don't know how much benefit that swap made from a shift quality standpoint. That's the main reason I would entertain this, especially if I could do it fairly cheap.

Fabbing the shifter and crossmember is no problem.

hefftone

Supposedly, psycho billy caddy (or Cadillac?) Has a tr6060. Another guy (on Facebook) had tr6060 internals put in his t56 case, can't remember who did the work.

ls1247

iTrader: (2)

I've thought about doing the 6060 internals swap but that's 4k and it still doesn't simplify the shift linkage. There are several companies that will do this but 4k...freak me.

bmylez

iTrader: (3)

Yes, psychobillycaddy did the TR6060 conversion, but I highly doubt it's straightforward. That guy has done a lot of custom work. Truly psycho. As stated, the most drop-in option is 6060 internals...as for the shift linkage, just stiffen things up as much as you can. Get all the bushings and weld the pivot arm straight.

hefftone

The V1 shifter can be vastly improved...that coupler is one of the largest contributors to the problem. Mine is really good now (soldered and Brian's bronze bushings), next time I have trans out, I'm going to have the coupler pin tig'd or brazed professionally. But yeah at 4k on that kind of rebuild, I'd be looking at other options too.
I still like the T-56 magnum XL...($$$, still a custom job at this point)
If you can have the money tied up in parts for a while....having a tr6060 and a t56 sitting on the floor side by side...I think you could pull this off.

ls1247

iTrader: (2)

There are any number of tr6060 configurations and some will be easier than others...what did he start with?

Installing 6060 guts in my t56 is the easiest way but I'm not spending 4k...

Instead of going to the trouble to make the base stiff by replacing all the bushings, I just welded a couple of tabs to it and mounted it solidly to the transmission.

This helped a good bit and while the car shifts ok, there is significant room for improvement. Obviously the GM engineers agreed which is why we have the V2 transmission.

ls1247

iTrader: (2)

That's what I'm thinking.

DMM

The problem with the V2 and 5th Gen TR6060 is the bell housing is one piece with the trans. You might be able to drop the engine and cradle and install it that way but unless you have a lift its a pointless endevour.

Why not have the existing T56 sent out and toughened up or converted into a T56 Magnum? It'll cost much less and be less of a PITA than trying to piece together a V2 onto a V1.

ls1247

iTrader: (2)

The one piece nature of the 6060 is a concern but it'll go in there. There are some aftermarket bell housing options but...

The whole premise of doing this is because it is potentially cheaper to upgrade to a v2 6060 than to pay 4k to upgrade what I have to a magnum. Beyond that, this swap would have the added benefits of losing the flex disc and gaining a much simplified shift linkage that you won't be getting with a magnum upgrade.

The GM engineers spent a lot of time and money improving the v2 over the v1 and the feedback I'm hearing is that the v2 is a smoother, better shifting car to drive and the 6060/shift linkage/driveshaft upgrades have a lot to do with it.

I've got about 50k on the clutch that's in the car and when it starts showing signs of giving up, I'll worry a little more about it.

In the mean time, if I run across a good deal on a v2 driveshaft, I'll snap it up to get a better idea of what will be involved on that end of the swap.

NIKDSC5

iTrader: (10)

Talk Talk Talk, just do it already! Then report back! Of course, now that I have had TDP rebuild my T56 with the stage 2, the likely hood I will be doing anything else is slim to....when I break it.

ls1247

iTrader: (2)

Lol...Mine won't get squat until it can't move on its on anymore so hopefully it'll be a while before the transmission comes back out of it.

If anybody comes across a good deal on a v2 driveshaft, I'll at least get off my wallet enough to compare it to the v1 shaft I have sitting here.

runsfromdacops

the 6060 fit in the tunel just fine. i think the v2 shifter is close to the same as the v1 and my work with little to no mods at all.
the 6060 is a far better tranny in every way and would be worth doing in place of a rebuild.
i was working on the t56mag (same as 6060 just a differant shifter)swap in my car but the non remote shifter was proving to be a pita. so i sold it and went to a 80e insted

ls1247

iTrader: (2)

Thanks for the encouragement!

The questions to answer in my mind is do you modify and use v1 or v2 components. I'm hoping everything is pretty close but I wouldn't expect it to be a plug in play because frankly, I'm not that lucky.

Followed your automatic project, saw where you posted up recently that you got the bugs worked out....nice work!

voodoochikin04

iTrader: (3)

I hear that poly carriers also fit the V2

ls1247

iTrader: (2)

Wonder if you can easily marry the front part of the v2 shaft to the back half of the v1 shaft?

rand49er

Met a guy this morning at a Lingenfelter car event local to me. He recently bought an '04 V, and it has a TR-6060 trans. It also has a forged LS2, TVS2300, 9" rear, and on and on. Had it tuned recently and has 650 rwhp. Told him to join some forums, so maybe he'll chime in one of these days soon, and he can share what little V modding experience he has.

Here's his car:

voodoochikin04

iTrader: (3)

V2 uses CV joints at both ends with a u-joint in the center. And they can be a bear to separate.

ls1247

iTrader: (2)

Next time you get one, how's about checking the v2 shaft to see if the diff flange is the same as a v1 and whether the carrier bearing is the same location.

Thanks for posting voodoo.