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Topic: Remember my tranny explosion? (Read 237 times)
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dart kid
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I think it's happening, again. Last Saturday night at the track, a was getting a "Vibration". Sounded just like it did leading up to what happened at Mopar's at the strip earlier this year. We just had the freaking thing redone which cost over $1200!!!! It has a bolt in sprag, race valve body, high end parts. I got the list if anyone is intrested in trying to help me find out whats wrong with it. I shouldn't be blowing up so many parts.  Any ideas? As of now, my plan is to pull the tranny out, have it looked at, put a diff valve body in (B/c I don't like the one in it) and hope it doesn't blow up. |
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rharveysr
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Who built the tranny? Was it someone that builds race tranny's or  ? Rick |
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 68 Pro Street Dart 383 4 speed Dana 60 ,R&R Racing Enterprise Custom Headers and fuel system,3" exhaust,Coffin Mufflers,SouthBend Clutch |
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dart kid
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He builds trannys, but charges a butt load for it.
He's been re-building trannys for the last 15 years or so.
We're going to be taking it to a guy named Pat Blais, he's been a transmission expert since the 60's and very afforadable.
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rharveysr
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Coming from the performance diesel side of life....I know guys that have been building tranny's their whole life..but they dont know how to build a tranny to hold the power of a diesel. Not trying to knock your tranny guy but to make one live under the stress that we put them under...it takes experience of drag racing and beating the crap out of one. My local tranny shop has built trannys for record holding cars(drag racing). I can have a full 727 built that will handle what we would throw at it for approx.$1000 plus convertor... This guy has been around the block a few times and has the scares to prove it..
Rick
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68 Pro Street Dart 383 4 speed Dana 60 ,R&R Racing Enterprise Custom Headers and fuel system,3" exhaust,Coffin Mufflers,SouthBend Clutch |
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moparn1
Full Member
 Offline
Posts: 262
Full Monty Racing
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When was the vibration happening? 1st gear? top end?
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bow chicka bow wow
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496dart
Full Member
Offline
Posts: 481
BigBlockDart.Com
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a 13 sec car shouldnt be hurting that trans. Id take it to a new builder.
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Bigcube
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a 13 sec car shouldnt be hurting that trans. Id take it to a new builder.
 You could have a problem with the converter and that is damaging the tranny. Was the converter new the last time you rebuilt the tranny? The vibration could even be the converter |
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Jim  Yes it's fast and no you can't drive it! Best 1/8 1.259 60', 5.67@121 Best 1/4 8.94@151 All Motor http://www.bigcube.org/ |
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chryco
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a 13 sec car shouldnt be hurting that trans. Id take it to a new builder.
You could have a problem with the converter and that is damaging the tranny. Was the converter new the last time you rebuilt the tranny? The vibration could even be the converter But the front seal would`ve puked already . I also agree a 13 sec car shouldn`t be hurting trannies. Well ? 1st gear burnouts , or what ?!!!! Best of luck ! Chryco  |
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Hemi Darts Rule !!!!!
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dart kid
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Hey Martin, it was doing it in 3rd gear at the top end. Started approx. from where I shifted until I passed the line. As the car slowed down, the vibration got less quiet and quiet.
I have only been doing 3rd gear burnouts.
And the converter is BRAND NEW since the tranny was rebuilt
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chryco
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Driveshaft out of balance ? Broke a tailshaft that way once Chryco |
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Hemi Darts Rule !!!!!
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dart kid
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YOu know Chryco, it may be. But the driveline is new as of last year.
The U-Joints are brand new though.
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bOb shingler
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try checking the convertor bolts they may have come loose.
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"bOb Built" (no matter how many times it takes)  |
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Bigcube
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try checking the convertor bolts they may have come loose.
That will usually cause a horrible noise at idle. I have heard of them loosening up many times. |
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Jim Yes it's fast and no you can't drive it! Best 1/8 1.259 60', 5.67@121 Best 1/4 8.94@151 All Motor http://www.bigcube.org/ |
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That One Guy
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my dad's did this with his last motor, the convertor bolts, we didn't know it until after he launched and got to about the 60', he felt it and shut it down, and saved the motor for the next weekend then it went. but that's another story.
Check the convertor bolts, and also check the drive line, you could have hit something to make it go off balance, although you would think it'd show up sooner.
put it on jacks and set something beside the rear wheel, and watch as you build a little speed with the back tires, if it wobbles, could be the tire/wheel setup out of balance, we've dealt with a lot of shakes over time.
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"I'm your Huckelberry" I need someone to look forward to.   |
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dart kid
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Well........... when I started it up to unload off the trailer last night, the engine didn't sound right all all to me. I started it, and shut it off b/c I felt something wrong. I eventually drove it into the garage where I have it up on 4 jackstands.  <----------------- <----------------- me |
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b569rr
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Find anything out?
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