, but I would start a new thread to get better responses. 
2nd cracked trans
Logistics Pro
Joined: Aug 2007
Posts: 3,974
Likes: 17
From: Millersburg, OH
luisfer8724 do you know what year replacement tranny they used? Also BillyBob and Redford have some good ideas on what it might be.
Since this is an older thread I doubt the OP is still around to give an update but it sure would have been nice in this instance.
Since this is an older thread I doubt the OP is still around to give an update but it sure would have been nice in this instance.
Thread Starter
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New User
Joined: Jan 2007
Posts: 12
Likes: 0
Still around and I have the answer-
It was my driveshaft - it was out of balance because the internal U-joint had detereriorated. It only vibrated at a certain speed which happened to be about 73-80mph. It would crack the trans. but the fluid was circulating so it wouldn't actually leak out until the vehicle was stopped for awhile. New driveshaft and new junkyard trans. and everything is fine. I also picked up a factorytech kit which I highly recommend.
Cargo Master
Joined: Mar 2006
Posts: 2,502
Likes: 2
From: Bend Oregon
It was my driveshaft - it was out of balance because the internal U-joint had detereriorated. It only vibrated at a certain speed which happened to be about 73-80mph. It would crack the trans. but the fluid was circulating so it wouldn't actually leak out until the vehicle was stopped for awhile. New driveshaft and new junkyard trans. and everything is fine. I also picked up a factorytech kit which I highly recommend.
Posting Guru
Joined: Nov 2006
Posts: 1,296
Likes: 1
From: muskegon mi.
yea I was thinkin drive shaft or carrier bearing,bent drive shaft...was hopen itwasnt just a beaten cause mine gets one regular..allready rebuilt both drive shafts and axels..(plow trucks get that)
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Logistics Pro
Joined: Aug 2007
Posts: 3,974
Likes: 17
From: Millersburg, OH
It was my driveshaft - it was out of balance because the internal U-joint had detereriorated. It only vibrated at a certain speed which happened to be about 73-80mph. It would crack the trans. but the fluid was circulating so it wouldn't actually leak out until the vehicle was stopped for awhile. New driveshaft and new junkyard trans. and everything is fine. I also picked up a factorytech kit which I highly recommend.
Thread Starter
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New User
Joined: Jan 2007
Posts: 12
Likes: 0
Thanks
But I actually feel bad for not coming back and posting it right after I found the solution...guess I needed some break-in time to test though. The truck has made it from Arkansas to Atlanta to Chicago and back w/o any problems; so I guess it's fixed.
