Hmmm.. to add on to this post is there any difference between gen I,II,III t56's in the Vipers?
Well I haven't consulted tremec, but from what I understand, the F-Bods T56 has a 26 spline input and output shaft. the Viper T56 has a 26 spline input and 30 spline out put shaft. I also have heard that the viper has a steel 3/4 shift fork. But beyond that I don't know what the differences are. The Gen I/II Viper T56's are rated at 450(not sure if that's rear wheel or flywheel) and the Gen IIIs are rated at 550.KenH said:I seem to recall someone stating that the output shaft was suppose to be beefier on the Viper, but I don't have any first hand knowledge.
I'm curious if they are going to have to beef up the tranny in some respect to handle the extra weight of the SRT/10 RAM
I think he's talking about road racing and having to shift into 5th on 1000 ft straights.John Myrick said:Fifth gear in the 1/4 mile with 3.07 gears sounds odd.
I seem to recall that the Gen I / II Viper trannies had "something" that was two piece vs the Gen III Viper tranny having that "something" as one piece - I would suspect it is the countershaft given the above info, and that he was giving you specs on the Gen III Viper tranny - no guarantees, just something I recall when going through my most recent Viper new tranny installation, which mentioned that the Gen III Viper trannies were stronger due to the one piece vs. two piece "something".buschman said:**************************************************************
· The Viper has a single piece countershaft where the GM and Ford transmissions have a two piece countershaft construction.
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So I guess we were all close, but now we know for sure. Tremec responds fast as hell. I didn't ask about the difference between a Gen I/II Viper T56 and the Gen III but I'll try and find out.
Mike
There's three reasonable ways to correct your problem.BLACK GTS said:Hey guys,
I don't want to steal this guys thread, but I am serious. At the drag strip, shifting off of a 5600 shift light I need to shift into fifth. I tried running it out in fourth and hit the limiter at 6200 about 100 feet from the finish line. On the pass on the limiter I ran 130.9 mph, when I shift it dropped to 127.5. I am leaving at 2000 rpm with a mid 1.60 60 foot time on a 345/30/18 drag radial, 6.90's @ 100 mph in the eighth and 10.70's in the quarter. I thought is was very bizarre also. I have a different cam and a aluminum flywheel, but I don't think it should make that kind of difference. Everyone else with similar times are going through in forth at around 4800-5200 rpm...what gives. From what you guys posted , you think I am nuts, nuts maybe...confused definitely. Any ideas would be great.
Thanks,
Joe
Tom Sessions, the Viper tech, was mentioning something of this sort to me when I had to get my last tranny put in, in relation to the fact that it was my 6th gear that went out on it - probably something to do with peaking it out at 300 MPH! :burn: /images/graemlins/gr_driving3.gif /images/graemlins/laughing.gifViperGTS said:>>>I would suspect it is the countershaft given the above info, and that he was giving you specs on the Gen III Viper tranny - no guarantees<<<
John, I think this is correct.
We had some tranny failures in Germany/Switzerland due to the 2 piece countershaft. I guess that since we drive the Viper on our Autobahns in 5th and 6th gear we see more tranny problems. The connection between the two parts is the weak point.