S13.75DET

while on a tow dolly with no driveshaft connected the diff locked up and destroyed both half shafts, rear subframe peeled, pumkin ripped out, sliced open the unibody, broke fuel breather, mangled sway bar and cracked the rear bumper

dont try this at home

Edwin562

WOW holy hell batman!!!

curbhuggerrps13

sweet mother of...how the hell that happened?

drift freaq

^^^^^^ agree^^^^^^^^^^^^^

Seriously.

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S14DB

Why is there a U-Joint and part of a DS still on the input of the diff?

That looks like torpedo damage not the diff locking up. The Ring gear looks pristine still.

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zenki_240sx

Oh Man. I have a J30 LSD but have been installed in my car for the last 5 years. I hope this does not happen to me.

keytops

Fire in the hole!!! Did you run something huge over?

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JSimpson

was there fluid in the diff?

rice_bowl

Correct me if I'm wrong, but aren't the drive wheels supposed to be the ones placed on the tow dolly.
For example, on a RWD car, the front wheels will be the ones rolling on the road, to avoid mishaps like this.

Edit: Good example, disgusting ass car.

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BoostSlideWayz

omg what did that sound like ?

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ILoveMyRHS13

How did you diff randomly "lock"?

Like S14DB said, it looks like the driveshaft pole-vaulted.

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S14DB

It can happen. I have seen it a lot at the drag strip.

However,

The reason you can't tow a car with a LSD is that the locking system will have the forces applied on it in reverse burning/grinding up the system. Usually when this happens the diff fails open. Even if the LSD failed closed the tires would just skip around corners like a welded differential.

When the Ring and Pinion fail ether by bad gear mesh or foreign object the R&P eats teeth or shatters. I don't think there is enough force being towed to break the R&P. So, it would just lock up and the tires would lock up and skid down the road. Even if the force was great enough, having the tq coming from the wheels would blow the axles before doing that much damage to the sub-frame. As I noted earlier the ring gear looks to be in good condition

The way the pumpkin twisted forward and then got rammed back and up into the trunk looks just like damage I have seen on other cars that dropped their drive shaft and pole vaulted it. I think that part of the J30 DS that was left on was spinning around and caught on something like a manhole cover or some other part of the road.

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The_Other_Aaron

Fucking brutal.

EjMalernee

Damn that's crazy looking.

RyanS13

Daaaaaaamn. Thats crazy.

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tqstarburst

God damn, some serious damage there. In for the story.

[email protected]

I bet the rear end of you car was up in the air about 2ft hahaha. Fack!

misterdumby

the rear wheels should be on the dolly when towing a rwd car

S13.75DET

okay, so this is the deal.

this happened while towing from PA to CO. I drove non stop to Denver (32hrs) before this happened.
The rear was down because the front end was too close to the ground for my comfort to tow across the country.
The J30 Was removed out of a junker and the driveshaft had been plasma cut off. I did spin around but was no where close to touching any part of the car.
When it did sieze, i heard a very loud bang, and the very warm 335/55 NT555R's STUCK and bounced the car about 3 feet up and 5 feet sideways in full lock up and the car started fish tailing pretty bad while i managed to get the truck and tow to a stop.
The tires were brand new and now have a flat patch that intrudes past the groove almost to the steel belt.
there is no damage to the end of the cut off driveshaft that would indicate a pole-vault situation. The ring gear is not flawless by any means and is completely locked up.

BoostSlideWayz

Should have ordered a flatbed man.

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S13.75DET

i know, but i was on a budget and the extra cost + the extra gas needed for the heavier load wasn't in the budget.

One way plane ticket from CO to PA= $220
One way rental (2 days & unlimited miles & employee pricing)= $224
Tow dolly (one week rental & unlimited miles) = $335
Gas = $320
Hitch & Wiring = $162 (which i returned after i was done for a full refund)
J30T & Halfies= -$100
New Subframe= $75
Open Diff & Halfies= $35
Good reason to buy solid subframe risers & ISIS Suspension package & learn a lesson= priceless

theboy

crazy shit man

Lrn2Go

Yikes! Better to happen while being toed than with someone in it!

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SoBay240guy

note to self remove diff and half shafts if you have to tow with rear wheels down...not like suspension needs em for thrust loads or anything.

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S13.75DET

So in order to get the car home, which was still another 200 miles (all curvy mountain highways which consist of 2 +10000' passes) was a whole different story. And I forgot to mention that this was on the Sunday before Memorial Day and no place was open for anything.
SO, here I am after pulling a car for 32 hrs straight with both rear wheels locked up on the side of I76 10 mi north of Denver. I had managed to get the rig to a stop about 20 yards past the entrance to an off ramp. I had no tools and only the stock jack that comes with a '10 Chevy Colorado. FML.
So at this off ramp there was a CO State Trooper and Ambulance responding to a medical emergency call at this gas station located just off of the exit. Well the trooper heard the kaboom followed by severe screeching and immediately came over to see what had happened.
I told him what I thought had happened and that I had to get the car off of the dolly and turned around if I was to move it at all, so I asked to borrow his jack and he said no and that I should call a tow company. He said that as long as no one was hurt and there was no other property damage that I was fine to be there and have a tow truck assist me.
So he left and I decided to go over to the gas station to see if they had any tools to see if I could remove the diff to at least get the rear wheels to spin to get off of the highway. Of course they didn't.
So then I started asking customers if they had any tools that I could buy or borrow and one guy gave me a small adjustable wrench. So then I decided to ask the Emergency crew. One of the crewmen said that he was also a tow truck driver and had a tow truck 5 min down the road and would go and grab it and help me out.
So I set up some triangles and flares along side the highway and decided that if the rear wheels were locked up that I would be able to unhook the front and just pull the dolly out from underneath it. I had to completely remove the front bumper, fmic & piping, oil cooler, and tie down the steering column with two ratchet straps, and it worked. So that took about 25 min and by the time I was done sure enough here he comes with a tow truck, emergency flashers flashing and all.
So now I have to get this car on the dolly but it is stuck facing forward on the side of the highway. So he tells me to pull a U-Turn on the highway and back the tow dolly up to the back of the 240. So I did it. We then jacked up both sides of the car with floor jacks and slid the disconnected tow dolly under the raised, locked-up rear wheels. Then backed my truck up to the tow dolly and re-connected. I then had to drive the wrong way on the highway and make another U-Turn with the 240 this time so I could exit the highway on the exit ramp that I was sitting next to.
I pulled into the the gas station and secured everything and left and made it home without any issues.
The whole ordeal only took 1 Hr. It couldn't have happened at a better spot or time, and I seriously owe that guy alot!

jakins

im not a mechanic but i think that thing is pointing the wrong way.

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conrad_s13.5

damn son!
if you were going to do it,.......thats how you fucking do it!

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TheRealSy90

It's just so painfully obvious why that happened. Never leave that piece of driveshaft connected to the differential. Sure you "spun it around and it didn't hit anything", but that u-joint is not going to stay perfectly straight at highway speeds, meaning it's going to fall to a side and flail around like crazy because of it being out of balance.

You could have saved all of your trouble with just a couple minutes removing those 4 bolts...

Joekuh

Dont skip steps: Hard lesson to learn...glad to see you made it back home tho OP.

VNG704

Um, take off bumper or anything up front ie IC if it's too close to the ground= free.