Pulling my trailer today with my skidloader on it (about 12,000 to 13,000 lbs total).

Pulled out from a stop sign onto a busy road, half way through the pull out, my pinion shaft broke. The pinion gear then jammed up in my ring gear locking up the rear end and sliding the rear end into the other lane. Luckily no one coming at that exact time. I knew right away something broke in the drive line, the driveshaft didn't beat anything up.

Funny thing is, I wasn't stopping on the throttle when I pulled out. I wasn't rushed into pulling out real fast.

We pulled the truck out of the busy road with my F550 so traffic could go on. Took about 2 to 3 minutes. We just drug the rear tires since the ring gear was locked up.

My 2003 F250 w/6.0 has 52,033 miles on it. Soooooo......... it's not covered under waranty, is it???

100,000 is just for the engine right. 36,000 on everything else, right?

Also, what rears do our 6.0's have in them? Dana 60's?

If they are 60s and I have to buy this out of my pocket, I just might order a Pro-80 from Dynatrac.

I do use this F250 for heavy towing. But that what these super-duties are supposed to be built for. I tow this skid loader about twice a week.

I like my F250 when it's not broken down. But times like these I feel like getting rid of it.

Please answer my waranty mileage question and what rears are in the 6.0s.

thank you,
X

 

Moved to SD section...enjoy

 

The F250 uses a Ford sterling 10.5" rear end, dana 60 in the front.

 

I do believe you're correct about the warranty issue, as well. 100k on the engine, not the rest of it. However, perhaps you're dealer will surprise you and help you out or meet you in the middle.

Sounds like a great truck, considering a skid steer and trailer are HEAVY and you've got 56k miles on a 3/4 ton truck. I'm impressed.

 

I see some typos in my beginning post. I meant to say, " I wasn't stomping on the throttle."

Sterling 10.5 ? thank you. I thought I remembered hearing it was a 60 with like 30 or 32 spline shafts, then later in 04 or 05 they went to a beafier 35 spline, or something like that.

I will have to look up info on the sterling 10.5 to see what it compares to. I'm not impressed with the small diameter of the pinion shaft (where it broke).

I've looked up in my manual of what a F250 with 4X4 and 6.0 diesel is rated to tow. Without a fifth wheel, 20,000lbs GCWR. Trailer maximum weight rating is 12,500lbs. So, I'm right around the max.

Truck pulls it with more power than my F550 (7.3) and the Tow/haul feature works awesome to stop with a heavy trailer, awesome.

I've had my tiny stock tires back on the truck for the last 6 months. I've been wearing out the "mud" tires too fast.

I do not have any performance upgrades to the engine at all. But I sure have dreams for it. So, I figure if I can break this rear with stock engine, I'd better upgrade.

Truck is all stock. Limited slip rear (well, it was).

I'm not going to put that same rear in it again, nor have that rear fixed.

I'll look into a bigger rear, maybe with an air locker.

I see ads at the bottom of this thread for rears. I'll go check them out.

Any suggestions on strong rears are welcome.

 

I know you don't want the same rear but yours must have been defective from manufacture. This is the first time I have heard of it..It just doesn't happen to often.

Dick

 

do you mean the pinion gear or the pinion shaft for the syder gears? if the later i have seen many of them snap off or snap off the small bolt that holds the shaft into the carrier assembly letting the shaft walk out and lock up the rear axle axle.it's not covered by the engine warrenty. that part of your warrenty was gone at 3 years or 36k mikes.

if it was the carrier shaft kiss the carrier good by if it's hurt. and it 's a goo reasone to tell the other half what broke and that a locker is the cheaper replacement part. good luck and let us know which one broke off as i have never i my days in shops seen a 10.25 /10.5 vista rear. twist off or break in a pinion input gear. "yet anyway"

 

Chas he said the driveshaft didn't beat anything up so I'm figuring the driveshaft hit the ground. Prob broke ahead of the crush collar.

Dick

 

guys,

shaft twisted off right behind the yoke.

I haven't tried to add pics to a post till now. Many problems, so I added them to a gallery, just click on my name and gallery.

I took 3 pics shortly after the incident, due to my amazement.

the first one shows it pretty well,

sorry no pic looking into the pinion hole in the housing. snapped off just inside the housing.

truck had no vibrations or gear oil leakage or signs of bearings worn. I really believe it just twisted off from the torque. Didn't look like it had been cracked partially for a while or anything like that.

look at the pictures and enjoy that it wasn't you.

thanks,
X

 

Sounds like the front pinion bearing was siezing up and overheated the pinion gear, taking out the temper/hardening. But from the pictures, the front bearing race looks fine.

It's very unusual to break a pinion gear without nitrous or some other unusual power-adder

Remember, next time(?!?!?), if you want to tow it without dragging the wheels, remove the axles.

 

first for me dick! i've seen that small bolt shear off on the spyder shaft and let that fall and lock up a rear. or the spyder shaft fail. never a pinion gear on a 10.5 before
learn somthing new every day. as i've never seen a big heavy pinion shaft like this one fail like that. darn john if you ever figure out what happened please let me know. as art states that bearing looks ok from what can be seen in your photos. and the break is clean right behind the bearing. lots of ????'s here

 

Is it possible that this is a factory defect?

Gunner15a

 

Did anyone pull the the rear cover off yet?
Capt ,if the spyder gear pinon shaft bolt broke and the pin slip into position it could lock the rear and snap the shaft. we had one on a dump truck do it .

Id pull the cover and look see.
Rich

 

ihear every one. just some thing new for me to see a shaft as big as this one fail. rich your reading my mind again as he stated the rear was locked up when they pulled it over to the side of the road. but no matter how at least it's repairable with a new gear set and carrier.

 

you are covered under the 100k warranty as it applies tot he entire drive train. it will just cost you the 100.00 deductable and have ford roadside assistance tow it at no charge.