So my wife ran over my transmission...

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Sep 17, 2005
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Where Bugs Shoulda Made a Left...
Yes, you read that correctly; her Jeep JK apparently harbors some sort of ill will toward my Cruiser.

I had cleaned up and masked off my 3-spd transmission to prime and paint quite awhile back while I did a bunch of other work on the 40. I finally got around to painting it on Saturday and had left it top-side down (without the shift cover installed) on some particle board to dry in the driveway. I'm under the Cruiser, about a half hour later, when I hear a thunk in the driveway and I peer to the side to see my wife driving off (she said afterward that she thought she went off the curb).

I realized immediately what had happened and I surveyed the crime scene. She obviously had driven over the input shaft, as the smooth portion that sits in the pilot bearing put a hole in the 0.5" particle board clear through to the concrete driveway. However, the surface hadn't been dinged up at all. The case had a couple marks on it, but no cracks. Both the input and output shafts seem ok as there's no side-to-side play.

So the point of the post (other than providing a dumb story)...

The item that concerns me is that the output shaft has about a half inch of play where it can be slid back and forth in the case. But it could have been this way previously, I just can't recall. With it pulled back, I can freely turn the input shaft without the rear engaging. With it pushed in, it moves with the input shaft. That bearing (?) and its c-clip ride up against the transfer case once they're bolted together anyway, so there's nowhere for it to move once installed, so I think that's how it was to begin with. I wanted to check with the masses if this was normal before I put it all back together though. Thanks!
 
First thing...get a rearview camera for your wife's car. That could have been you instead of your trans.

Second thing...yeah, the trans is OK unless the input shaft is bent.
 
Right? I can understand how it would have been difficult for her to see as I had put it a few feet behind her bumper so it sat in the sun. Practically impossible to see with her lift without walking around the vehicle first (which we also talked about). The cameras are pretty cheap, I'll talk to her about it tonight.

Good news on the trans then, thank you!
 
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Should there be any side to side AT ALL in the input shaft? Now that I look at it a second time, the shaft did not bend, but there's a very slight side to side movement. I'll see if I can upload a video.

Output shaft pushed in...
Output shaft pulled out...
 
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No dial indicator handy, but I'll see if I can borrow one. I checked it with a straight edge metal ruler up to the bearing and it looks straight though. We'll see if I uploaded this correctly. I hate hearing the sound of my own voice...

 
The front of the input shaft resides in a bushing or bearing in the flywheel. This should take care of the input shaft side play.
 

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