1995 Toyota T-100 driveshaft broke away from transmission

Tiny
ROYAL3
  • MEMBER
  • 1995 TOYOTA T-100
Transmission problem
1995 Toyota T-100 4 cyl Two Wheel Drive Manual

Brought my truck to a nationally known transmission shop with a blown transmission. They changed out my transmission and I brought the rear drive manual transmission home. I started on a long trip and the U-joint (attached to the drive shaft where it enters the transmission) gave out after less than 100 miles, about 70. I was doing about 70 and driving straight down the highway. I was asked and told that I may have, hit something on the rode, I did not see or hear anything. The u-joint gave no indication of being bad before or after I brought it to the shop (I never heard or felt any sloppiness, noise or vibration) the driveshaft broke a piece off the new used transmission, disconnected the emerency brake cables (when I set the emergency brake when I stopped, the drivers air bag deployed?), Ripped the drive shaft loop support off the bottom of the truck, tore up the drive shaft, and I didn't see the rest. My question is, Should the mechanic be held responsible for not inspecting and notifying me of the U-joint condition? The U-joint was old enough that the rubber had started peeling back from the metal (saw this when I got it back to the shop). The U-joint is the U-joint attached to the hub attached to the spline entering the transmission. I paid 2000 dollars for the trust and quality, I could have changed out the transmission for less than a 1000 and changed the u-joint (I'm old and tired). The Lord has taken care of me, I'd rather pay a young family than do it myself. I'd like to be fair so I will listen to all help given.

God Bless
Roy
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Thursday, August 5th, 2010 AT 1:34 AM

5 Replies

Tiny
MHPAUTOS
  • EXPERT
Hi there,

If the uni was badly worn the mechanic who did the job really should have seen it and at least reported the fact that it was worn, in saying that, sometimes unis can be so rusted up that they feel fine ands can often work with out much vibration until they fail, is can be after an extended run as they then have enough time to over heat and seize up and fail, short stop start driving may not get them up to a critical temp that may induce a failure and they can stay like this for some time.

Mark (mhpautos)
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Thursday, August 5th, 2010 AT 7:25 AM
Tiny
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I've asked around some and have heard that if the transmission put back in the truck is not a W56, the length may be to short. Since I never heard any noise from the U-Joint, is it possible that the drive shaft actually came out of the transmission at the spline? That is what I was told could happen.
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Thursday, August 5th, 2010 AT 9:00 AM
Tiny
MHPAUTOS
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If the uni failed it will be because it was worn, I am unaware about the transmission issue with tail shaft length, what transmission is fitted?

Mark (mhpautos)
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Thursday, August 5th, 2010 AT 6:31 PM
Tiny
ROYAL3
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We resolved the problem, the bolts holding the swing bearing between the front and rear driveshaft was not bolted, someone simply forgot. I did learn quite a bit: 1) the front universal at the drive shaft rarely goes out 2) the front part of the drive shaft does not move forward or back (the swing bearing prevents this) 3) the rear shaft does move
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Thursday, August 5th, 2010 AT 6:40 PM
Tiny
MHPAUTOS
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OK, thank you for the feed back.

Mark (mhpautos)
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Thursday, August 5th, 2010 AT 6:41 PM

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