99 Manual Transmission Locked Up

[2628Highboy]

1999 Ford F250 7.3 Powerstroke Diesel 4x4 with a 6-speed ZF S6-650 transmission. I have owned the truck for about 5k miles and it currently had 260,000 miles on it.

I was using my truck yesterday to pull some stumps. When I was finished I placed in in 2H, unlocked the hubs, and drove off. About 1000 feet down the dirt road the rear axle locked up? It felt like a sudden stop or parachute stop. I looked on the ground and the rear tires locked up.

I was on a slight decline and even with the clutch in I could not get it out of gear. I could start the truck fine but once I let out the clutch it would stall. My brother chained up to me (with a Chevy, how embarrassing) and pulled me back to get it unlocked. I thought all was well. I continued down the hill and about 10 yards it locked up again. I tried a couple of different gears and each locked up after a short distance. After about 20 min. of this I tried to let out the clutch in neutral and it felt like second or third gear then it locked up again.

We figured out how to move the truck by placing the transfer case in neutral then I had it towed.

The shop just called me and told me that it was DRY! Is it worth putting fluid and trying to see if it will work or is the damage done?

[mcgoo422000]

Originally Posted by 2628Highboy

1999 Ford F250 7.3 Powerstroke Diesel 4x4 with a 6-speed ZF S6-650 transmission. I have owned the truck for about 5k miles and it currently had 260,000 miles on it.

I was using my truck yesterday to pull some stumps. When I was finished I placed in in 2H, unlocked the hubs, and drove off. About 1000 feet down the dirt road the rear axle locked up? It felt like a sudden stop or parachute stop. I looked on the ground and the rear tires locked up.

I was on a slight decline and even with the clutch in I could not get it out of gear. I could start the truck fine but once I let out the clutch it would stall. My brother chained up to me (with a Chevy, how embarrassing) and pulled me back to get it unlocked. I thought all was well. I continued down the hill and about 10 yards it locked up again. I tried a couple of different gears and each locked up after a short distance. After about 20 min. of this I tried to let out the clutch in neutral and it felt like second or third gear then it locked up again.

We figured out how to move the truck by placing the transfer case in neutral then I had it towed.

The shop just called me and told me that it was DRY! Is it worth putting fluid and trying to see if it will work or is the damage done?

Pocket bearing siezed up it will need a new input shaft and bearing kit at minimum should be able to get a ZF ford rebuilt one from dealer for around 3,000 whatever you do don't buy one from joe;s transmission in saxonburg Pa. He about put me outta business with his poor work.