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The Terminator
Driveline
Level VI 1000HP "T56 Magnum" from RPM Transmissions
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<blockquote data-quote="SlowSVT" data-source="post: 12174739" data-attributes="member: 20202"><p>I was just making a general statement to the OP on what is the most common failure mode on the T-56 and not to worry because it's a pretty stout unit considering the amount of power they can hold. Your response made it sound like this was not the case when you stated this: "<u>Nothing to do with the driver or blatant abuse</u>" :dw: I'm not sure if this was just something you wrote that didn't come across correctly but I can assure you abuse and improper shifting are the absolute #1 cause of gear box failure and twice on Sundays.</p><p></p><p>I've read a lot of posts from guys who were having tranny problems and were gussing the T-56 trying to find out what was wrong :cuss: What they usually neglected to divulge until pressed is they drag race the car (suddenly the picture become much clearer) and I've seen the brutality some guys put their gear box thru thinking it's luv'N-it until something snaps :uh oh: Pay to play :burnout:</p><p></p><p>Something tells me in your case was more from distorting the transmission case under extreme load upsetting the shaft alignment and not heat as you stated (that would come next). Considering the tranny is rated at "only" 400 ft lbs which is limited by the 10 spine input shaft with a root dia being the same size as the pilot bearing. Installing the 26 spline raises the torque capacity considerably which I think is close to 700. Many guys have exceed that with an upgraded T-56 and lived to tell about it. I guess you weren't as luck. </p><p></p><p>Don't power shift, don't speed shift, try to avoid shock loads thru the drive train, don't force the stick into gear and buy a 26 spline input shaft. Do this even at elevate power loads his T-56 will live a long and happy life <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="SlowSVT, post: 12174739, member: 20202"] I was just making a general statement to the OP on what is the most common failure mode on the T-56 and not to worry because it's a pretty stout unit considering the amount of power they can hold. Your response made it sound like this was not the case when you stated this: "[U]Nothing to do with the driver or blatant abuse[/U]" :dw: I'm not sure if this was just something you wrote that didn't come across correctly but I can assure you abuse and improper shifting are the absolute #1 cause of gear box failure and twice on Sundays. I've read a lot of posts from guys who were having tranny problems and were gussing the T-56 trying to find out what was wrong :cuss: What they usually neglected to divulge until pressed is they drag race the car (suddenly the picture become much clearer) and I've seen the brutality some guys put their gear box thru thinking it's luv'N-it until something snaps :uh oh: Pay to play :burnout: Something tells me in your case was more from distorting the transmission case under extreme load upsetting the shaft alignment and not heat as you stated (that would come next). Considering the tranny is rated at "only" 400 ft lbs which is limited by the 10 spine input shaft with a root dia being the same size as the pilot bearing. Installing the 26 spline raises the torque capacity considerably which I think is close to 700. Many guys have exceed that with an upgraded T-56 and lived to tell about it. I guess you weren't as luck. Don't power shift, don't speed shift, try to avoid shock loads thru the drive train, don't force the stick into gear and buy a 26 spline input shaft. Do this even at elevate power loads his T-56 will live a long and happy life :) [/QUOTE]
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Driveline
Level VI 1000HP "T56 Magnum" from RPM Transmissions
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