I am looking at picking up a 02 ss, it has a stock T56 trans. I read something about the t56 trannies in the LS1 cars is a pos made in mexico and not strong like the t56 in the LT1 cars that are made by Borg Warner. Is this info true? Is the t56 in the LS1 cars strong and reliable or are they a pos?

 

maybe a 75ft-lb difference, but by the time you are at that power level, sixspeedsinc would've already taken care of that problem.

 

I dont follow you.

 

by the time you hit the power level of the weakness, you would already have had it rebuilt to where that factory flaw isnt there anymore.

 

And what power level is That? And what is the factory flaw?

 

My T-56 says borg warner on it and its in a 2002

 

They relocated/whoever owns it now[can't remember][not B.Warner anyway] to Mexico because of the Crazy Health Insurance prices in the States. Read this in H.Rod mag.

 

I think the LS1 T56 trannies are made by Tremec, and are not nearly as bulletproof as the old LT1 T56 made by Borg Warner.....from what i have been hearing.

 

Your hearing wrong... Even if it was made in mexico wouldnt make it a pos. The LS1 tranny is stronger. There are numbers out there to prove it.Stop hearing and start reading.

 

You definately have been misinformed on several levels . As for the units being stronger after SixSpeeds rebuild them , well that depends on what you are referring to . They simply over haul them and replace the parts known to fail such as the 3/4 fork and the syncro keys . All of the other parts are directly from Tremec and are stock parts (unless you are referring to after market gear sets which 99.9% of the rebuilds are not with that stuff) .

 

As was indicated in the other thread, the T-56 is much stronger than you have heard. Your sources are unreliable as the majority of us here are pushing our near stock transmission pretty damn hard.

This bias seems more like it's nation based than on facts. Simply because they were made in Mexico does NOT mean it is a POS. Why do you continue to insist that the early versions were the stronger ones and the later ones were the weaker ones? Does it not click in your head that the LS1 cars made MORE power and MORE torque then the LT1 cars? Would have heard a lot of us destroying our transmissions with all that extra power...

 

I would say the only thing that might be weaker on the LS1 unit over the LT1 unit is the input shaft due to the fact its longer .

 

Input shaft breaks are rare. Those that can pull the power to break them are making pretty high numbers in the first place. Those that break in stock conditions or typical H/C situations, there's usually another underlying problem that lead to it in the first place rather than the shaft being at fault.

If anything I've heard more occurences of output shaft/tailshaft breakage more than the input shaft. this is usually because of the stress that the torque arm puts on the tailshaft and the fact the output shaft has very little to take the shock if dumped with slicks unlike the input shaft which has the clutch slip to absorb some of the shock.

 

aside from the input shaft size they are exactly the same with even the same part number