Transfer Case Stress Cracks
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Tuned
Joined: Jun 2006
Posts: 363
Likes: 3
From: Graham WA
Transfer Case Stress Cracks
1986 F250 460 T-19
Stress cracks radiating out from the TC input and also output to the rear drive.
No problems or symtoms seen with it (rarely use the 4 wheel drive). How serious a problem is this? Is it common for 100k mileage?
Stress cracks radiating out from the TC input and also output to the rear drive.
No problems or symtoms seen with it (rarely use the 4 wheel drive). How serious a problem is this? Is it common for 100k mileage?
Cargo Master
Joined: Dec 2003
Posts: 2,182
Likes: 7
From: Saint Augustine, FL
Yep. The cracks will get worse until it breaks something or leaks all of its fluid out through the cracks. It _can_ be pretty ugly if the TC fails abrutly.
Have the driveshaft checked and see about having the cracks welded.
Steve
'95 Clubwagon XLT
Have the driveshaft checked and see about having the cracks welded.
Steve
'95 Clubwagon XLT
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Tuned
Joined: Jun 2006
Posts: 363
Likes: 3
From: Graham WA
So have the drive shaft rebalanced? Is that done on the truck or off the truck. It's completely removed right now. I am changing all the U-Joints as part of this maintenannce down time.
Cargo Master
Joined: Dec 2003
Posts: 2,182
Likes: 7
From: Saint Augustine, FL
Take the drive shaft itself to a driveline shop and have them check it out. Shouldn't take them long or cost that much.
Steve
'95 Clubwagon XLT
Steve
'95 Clubwagon XLT
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Tuned
Joined: Jun 2006
Posts: 363
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From: Graham WA
Thanks for the help. I don't know much about drivelines, but I will learn from good folks on this forum like Steve.
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Thread Starter
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Tuned
Joined: Jun 2006
Posts: 363
Likes: 3
From: Graham WA
They look like small fractures (probably from metal fatigue) that radiate out from the input shaft hole in the case. The truck runs real smooth. I would have never known except I pulled the drive line out to inspect everything and fix some engine fluid leaks. So, I think I will keep an eye on it and inspect about every 3 months to see if they are changing over time. These hairline cracks can only be seen with the unit disconnected from the transmission.