Ouch! T-56 Carnage Pics Inside
06-19-2013, 10:06 AM
#1
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Ouch! T-56 Carnage Pics Inside So, as I said in the other thread, my trans went out this weekend. I tore the rear off and things didn't look good at all. I had a chance to finish the tear down and it's really not good at all.
So, first I found that the 5/6 driven gear came right off by hand, no need for a puller - NOT GOOD. Mainshaft needs to be replaced with the 5/6 driven gear. I pulled the 5/6 cluster out and found the really bad part...the countershaft broke two of the five drive splines (for the 5/6 cluster).
I got the case apart and found that indeed, the 3/4 syncro retaining spring came apart and locked up the trans while driving at 60 MPH (which is what sheared the countershaft splines). If this were a lighter car, it probably would have locked up the tires and sent me in a ditch.
So, the factory 2.97 ratio countershaft is about $900...a new 2.66 countershaft and 1-3 gears and syncro's come to just over $1,200 for these parts alone. Called the local junkyards and one that had one (Ripple's in Upper Marlboro) wants $5k for a 50k mile 2005 CTS-V trans...good ******* luck with that one. RPM came in at about $3200 shipped for a Level IV with core charge. Weighing my options at the moment....
So, first I found that the 5/6 driven gear came right off by hand, no need for a puller - NOT GOOD. Mainshaft needs to be replaced with the 5/6 driven gear. I pulled the 5/6 cluster out and found the really bad part...the countershaft broke two of the five drive splines (for the 5/6 cluster).
I got the case apart and found that indeed, the 3/4 syncro retaining spring came apart and locked up the trans while driving at 60 MPH (which is what sheared the countershaft splines). If this were a lighter car, it probably would have locked up the tires and sent me in a ditch.
So, the factory 2.97 ratio countershaft is about $900...a new 2.66 countershaft and 1-3 gears and syncro's come to just over $1,200 for these parts alone. Called the local junkyards and one that had one (Ripple's in Upper Marlboro) wants $5k for a 50k mile 2005 CTS-V trans...good ******* luck with that one. RPM came in at about $3200 shipped for a Level IV with core charge. Weighing my options at the moment....
Last edited by DMM; 06-19-2013 at 10:12 AM.
06-19-2013, 10:28 AM
#4
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Tick only does rebuilds and mine needs just about everything...mainshaft, countershaft, 1-3 gears, 1/2 and 3/4 syncro's assemblies (for different gears), 5/6 driven gear, and whatever else. Think I'm going with the RPM unit since they can source a new one with a $750 core charge. I'll have something on the way by the end of the day one way or another.
06-19-2013, 10:35 AM
#6
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We have a specific use mainshaft, and our cars came with the 2.97 ratio first gear (same as the C5 Z06) making the countershaft and 1-3 gears and syncro assemblies a rarity. These two specific parts make our trans unusable for anything else and non-interchangeable with 90% of T-56 transmissions out there.
RPM said almost every component in our trans is good to 700 ft lbs...doesn't take much to toughen them up for higher rated use. End play and billet keys are the main upgrades.
RPM said almost every component in our trans is good to 700 ft lbs...doesn't take much to toughen them up for higher rated use. End play and billet keys are the main upgrades.
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06-19-2013, 11:07 AM
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http://sfbay.craigslist.org/eby/pts/3878087020.html
This guy has a couple of the parts. Don't know if it will help but he has had these on CL for a while and may come down a little.
This guy has a couple of the parts. Don't know if it will help but he has had these on CL for a while and may come down a little.
06-19-2013, 11:14 AM
#11
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What are the RPM transmissions rated to? I went on their website and $2800+ for the level 5 isn't Terrible if its over 1000whp+ capable but still that's pretty spendy
06-19-2013, 12:27 PM
#12
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Got a price for a TR6060 conversion good for 800+ ft lbs and warranted for 12 months...$4k and about 6 days lead time.
Gotta try one last thing before I pull the trigger....
Gotta try one last thing before I pull the trigger....
06-19-2013, 01:09 PM
#14
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They only consider the case a core. Everything internally is replaced including te front cover. So, exchange with fluid and shipping works out to $3995.00.
06-19-2013, 01:30 PM
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What about this? Hurst T56 Magnum (TR6060)
http://m.summitracing.com/parts/cmg-tuet11012
Correct 1st gear ratio. No core charge. Ships today. $2899+freight.
I thought I remembered someone else on here ordering it for their V?
http://m.summitracing.com/parts/cmg-tuet11012
Correct 1st gear ratio. No core charge. Ships today. $2899+freight.
I thought I remembered someone else on here ordering it for their V?
Last edited by piening2150; 06-19-2013 at 01:42 PM.
06-19-2013, 01:39 PM
#17
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