Drive shaft snapped at 103K miles
#51
Senior Member
Thread Starter
Well, depends, if in drive it was loading up but not turning then I'd say it's something with the diff. If it just rev's with no drive shaft rotation, then yes the tranny is pooched. I would suspect this as well if the shaft siezed violently at highways speeds. I remember my buddies Hyundai pony actually snapped a crank shaft when his rear end siezed. It was comical....your situation not so funny. Hope it works out for the best for you...well as good as it can be.
Ian
Ian
When they put it in drive it made some really awful sounds; loud bangs.
I could've sworn it was coming from the mid area, but I dunno.
#52
When you say it wont go into drive you may have your answer right there. Do you mean when the gear selector says D nothing happens? Or is there a jolt? Or the gear selector wont even get to D? Tech is going to lie if they were allegedly checking up on your truck for 100,000+ miles. I changed my rear diff fluid at 130,000 and boy was I glad I did. What a mess. I see yours has a leak in the seal though as evidenced by the fluid on it around the outside of the gasket/bolt area. Seems like it could be fine with a slow leak. Or not. Guess that all does not mater much now though. Was the diff ever under water? The book says change the fluid if it was. Water contamination can ruin it. Good luck.
#53
Tech said diff oil was full and clean, though he can be saying that to cover their asses.
His theory (based on damaged parts) is the pinion pin (a $6.28 bolt) sheared off and allowed the pinion shaft (a $13.88 bar) to wobble loose and set free everything else ... and boom goes the dynamite.
His theory (based on damaged parts) is the pinion pin (a $6.28 bolt) sheared off and allowed the pinion shaft (a $13.88 bar) to wobble loose and set free everything else ... and boom goes the dynamite.
No way is it clean. It has at least one large piece of broken gear in it. That right there defines contaminated.
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FX4ord (03-22-2015)
#54
Senior Member
Thread Starter
That rear is shot. Why risk damaging your trans if its ok by running it with the bad rear in? Change the rear. Keep the new drive shaft in. Then test transmission. And pray its ok. Reverse may be fine because it was not moving 45 miles per hour in reverse when it hit an immovable force. I bet the gear it was in while moving is toast.
#55
#56
I concur. No way in hell that diff fluid is clean. The force it took to punch a hole on the cover is crazy to imagine. I've sheared gears before and drove home in four high but damn. The transmission may surprise you though and be just fine.
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FX4ord (03-22-2015)
#57
Senior Member
Thread Starter
When you say it wont go into drive you may have your answer right there. Do you mean when the gear selector says D nothing happens? Or is there a jolt? Or the gear selector wont even get to D? Tech is going to lie if they were allegedly checking up on your truck for 100,000+ miles. I changed my rear diff fluid at 130,000 and boy was I glad I did. What a mess. I see yours has a leak in the seal though as evidenced by the fluid on it around the outside of the gasket/bolt area. Seems like it could be fine with a slow leak. Or not. Guess that all does not mater much now though. Was the diff ever under water? The book says change the fluid if it was. Water contamination can ruin it. Good luck.
#58
Diff was never submerged in water. As far as the drive deal goes, I need to talk to the other tech on Monday cause I wasn't watching his hand on the shifter or what exactly was happening. I was watching underneath. He did say drive didn't have that initial grab you feel when put in drive, so perhaps that means the shifter did physically get to D.
That sounds bad to me. With a seized rear end it should grab for sure. Disconnecting the new drive shaft and running through the gears should be fine. It wont answer as much as having it all together and testing it but some questions will be answered. It wont hurt anything. Just like spinning your wheels on ice or putting it in gear with a foot on the brake.
#59
Senior Member
I would expect the dealer to drop the transmission pan and check the fluid. If it had metal in it, of course the trans is toast. It is such a simple thing to do.
#60
Senior Member
I believe, not positive, that the speedo gets its signal from the transmission. If it indeed does then you could put the shifter in M and if the drive shaft rotates it should register on the speedo. If that happens bring the rpms up to 1k or so then slowly shift up each gear. As you shift up each gear you should see the speedo increase.