Dana 70/267mm SOS!!

[Quest]

We have an emergency here guys.
While driving 65mph we felt something on the back of the truck. A little later we had noises from the rear end.
Decided to pull over to check and while getting off one wheel locked up and we slid.
Tried to move the truck in reverse or forward and all we felt getting on gear but no movement.
This is our only vehicle and we have limited resources now.
Any ideas? Does the rear end will need to be rebuild?
Please help SOS.
Thanks

[Nor'Easter]

Put t-case in neutral, lift up the back and see if they spin.

If you lost fluid somehow things would've gotten mighty hot back there, even with low fluid.

[Quest]

Originally Posted by Nor'Easter

Put t-case in neutral, lift up the back and see if they spin.

If you lost fluid somehow things would've gotten mighty hot back there, even with low fluid.

thanks for the fast reply.
this is another weird thing.
While the tow truck was loading into the flat bed by winch.
even in neutral the right wheel seemed to be locked.
At our house while unloading even with the truck in Parking the truck will still roll.
Any idea?

[country_hick]

Many years ago I had a front wheel bearing seize up just a little. It would snub a bit and then be ok. I immediately pulled over. I put some 90 weight into the bearing cup. It drove home just fine. When I got home I noticed the nearing had fused itself onto the spindle. I was thankful I had a parts vehicle.

Perhaps the wheel bearing seized up on the truck and the oil got splashed around a bit with towing. Perhaps something that got hot expanded and then shrunk back down to size when it was cooled off. You may even have had a brake stick and get to hot and then cool down.

The only way to know what is wrong is to first check the fluid level. If that is still where it should be you will pull the wheel and brake drum off. You should be able to see if the brakes are fine or not. With a full floating rear end you should be able to pull the axle shaft out and look at the bearings. Then probably seeing nothing wrong there you will pull the rear end cover. the good news is there is not a lot in a rear end to go bad. The bad news is the parts are not exactly cheap.

[Quest]

[QUOTE=country_hick;4803356]Many years ago I had a front wheel bearing seize up just a little. It would snub a bit and then be ok. I immediately pulled over. I put some 90 weight into the bearing cup. It drove home just fine. When I got home I noticed the nearing had fused itself onto the spindle. I was thankful I had a parts vehicle.

Perhaps the wheel bearing seized up on the truck and the oil got splashed around a bit with towing. Perhaps something that got hot expanded and then shrunk back down to size when it was cooled off. You may even have had a brake stick and get to hot and then cool down.

The only way to know what is wrong is to first check the fluid level. If that is still where it should be you will pull the wheel and brake drum off. You should be able to see if the brakes are fine or not. With a full floating rear end you should be able to pull the axle shaft out and look at the bearings. Then probably seeing nothing wrong there you will pull the rear end cover. the good news is there is not a lot in a rear end to go bad. The bad news is the parts are not exactly cheap.[/QUOTE
I noticed not a long time ago that while doing sharp turns the the wheels were making noises like if the posi was locking.
And now this issue? Everyone that it had posi issues before told me that is normally a non engaging issue and not a locking one.

[country_hick]

In my case the vehicle was a 2wd. I could actually feel the front tire snub up for a short time. It may or may not be relevant. I was just giving a possibility. All I know about 4x4 front ends is my 1975 plow truck ate the spider gears and a used axle was cheaper than the parts were. I have yet to drive a posi axle.

[Quest]

Originally Posted by country_hick

In my case the vehicle was a 2wd. I could actually feel the front tire snub up for a short time. It may or may not be relevant. I was just giving a possibility. All I know about 4x4 front ends is my 1975 plow truck ate the spider gears and a used axle was cheaper than the parts were. I have yet to drive a posi axle.

Ours is a 2x4 as well. I'm not a mechanic but I'm very mechanical inclined.
So what should I look for? Should I start at the wheels hubs or at the differential ?

[Nor'Easter]

If it still spins then that takes me away from the diff. Since its the right wheel locking up (if it does) then I'd look at the wheel bearings/ hub assembly.

[Quest]

so...may be we broke an axle?

[Quest]

Originally Posted by Nor'Easter

If it still spins then that takes me away from the diff. Since its the right wheel locking up (if it does) then I'd look at the wheel bearings/ hub assembly.

Got the dif cover off and found that the pinion is damaged.
The front seal went bad. No fluid at all at the rear end once the cover was removed.
The rack seems to be real good shape.
Now 2 questions:
1) Can just the pinion be replaced or it has to be rack & pinion?
2) Any special way or trick to remove the pinion?
We got the nut out but this baby doesn't want to come out at all. We got tired of hammered it.
Any advice?
We are trying to upload pics but we can't due the size of the files.
Thanks

[Nor'Easter]

If you verify the rack isn't damaged I don't see why it'd have to be replaced. Can't say I've ever dived into a diff housing but it only makes sense...

When you say the pinion was damaged, what do you mean? Missing teeth? Worn down teeth?

[Quest]

Hard to describe.
Can't post pics but if you pm me your email I'll send them right away.
The inner bearing was total destroyed and it seems that because of the high temps the pinion looks bent from the back.
It did bend to the point that one part was touching the housing.