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HybridZ

High horsepower 6spd guys


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The beauty of my situation is I have the GTO T56 which means I have the good gear set. To completely rebuild the trans and upgrade to the ssr 32spline mainshaft/yoke/machining yada yada is $1700 for parts/labor out the door from TDP.

That is a 850-1k capable transmission for a quarter of the cost of the 6060.

 

Im also going to add the pump for better frontal lubrication

 

So what's the total bill going to be, cost of your trans and all?  I'm still on board for a magnum, if anyone wants to buy mine?!  The good thing is you'll have the triple cone synchros in that gto trans, albeit a gearset that favors panzer tanks.

 

The TR6060 and the magnum are internally the same. Say it with me : "magnum". haha

Edited by SUNNY Z
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1700 if I bring him my trans BUT that doesn't solve the gear shear problem.. Trust me Im considering the TR6060. Here Is the thing. All of the failures I've heard of have been because of "weak gears" what does that mean? shit material? I doubt it. Gears that are properly lubricated don't just break. Almost all of the gears shearing problems I have seen look exactly the same and all come from the same spot, the front of the transmission. I think the T56 has the same problem the 6060 has, bad fluid circulation and poor lubrication. Im going to call a couple big name builders and ask the same question "where are the T56's failing" $20 says they all same the same thing. Im willing to bet a lube pump dumping fluid in the correct spot will fix the problem.

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I can read... the awnser is still $1700. Ill let you figure out how that is possible :icon47:

 

Ok, so for everyone else reading this thread, plan to spend 1500 on a known good t56, + parts + labor.

 

IIRC a "viper spec" trans from most builders is about 2200 (parts & labor), that does NOT include the cost of the trans.

Edited by SUNNY Z
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Viper spec is actually the smaller spline shaft and is usually cheaper. The viper thing is kind of "old news" TDP sells a stage 3 which is the larger 32 spline SSR shaft plus all the goodies for $1700 which does not include the price of your trans. I see stage two T56 transmissions for sale on LS1tech for $22-$2300 all the time and that is including the price of the transmission. For most of the guys on here the stage two is plenty. Anyone moving north of 700rwhp needs to consider something else.

 

Of all the builders I've spoken to they all pretty much say the same thing. The T56 is underated at 400ish tq and 450rwhp. They start to fail around 650-700rwhp. There are tons of N/A guys ABUSING them with great results and a lot of turbo guys that have them fail regularly. Through my observations and research I have come up with a very simple hypothesis.. The reason turbo cars are eating T56's and TR6060 is because of the power deliver on turbo cars. Most of the time when the power from a turbo is unleashed it comes on strong and HARD very quickly. That in turn makes the car squat sending all the fluid to the rear of the trans and starving the 3/4 gears and the front main shaft of the transmission. This is no secret to anyone who is familiar with the Tremec transmission. There is a very simple solution to this.. install a pump a distribute the fluid accordingly through out the trans. Again this is no secret to TR6060 guys but for some reason there are few T56 guys doing this. The few guys I've seen that do, do it end up with a working transmission time after time. So what I have decided to do is create a little experiment. I'm going to take my bone stock GTO T56 and im going to go over kill on the oil delivery. I'm going to go one step above what most builders do and address every gear on the T56 with ample fluid delivery.

 

When my engine and turbo setup is done I should be around 850rwhp so we will see how long I can make a stock T56 live at this power level.

Edited by Thisguy
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For the tr6060 guys I just saw tick performance's website and for a $2500 rebuild they have a warrantied 700+ ftlbs guarantee on the stage 3 rebuild. First ever for a Trans rebuild of that caliber. Idk what all it comes with but that's worth it. Just find a cheap core lol

 

So when I go turbo that'll be my route for a Trans rebuild.

Edited by EastTnZ
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  • 2 weeks later...

If my wife dies before I do, I have her insured for enough to buy two of MTIs sequential T56 systems. The insurance company calls it a $50,000 policy; I call it my transmission upgrade plan. Anybody know a guy....?

 

"Oh, you're goin' straight to hell for that one!"  Robin Williams in Good Morning Vietnam.

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