Here's the deal.. I bought a 1980 chevy k10 with the newer body style(stock). The guy had someone rebuild the front axle in it but they say that they forgot to put in a crush sleeve. I am a certified mechanic but have never messed with axles unless swapping them. The guy put in a th400 trans and transfer case out of a 1 ton. On the front axle, the yoke spins freely and I am wondering if it would be easier to tear it apart or should I just swap the whole axle? If so, would an axle from a later model work? I'm not looking to do any major off road activities but once in a while I might come across a mud hole lol. I have axcess to one from an 85 k10 blazer. Would that work?
rage123
crush sleeve.
It's not a fun job so find someone who has done it before or read up so you use the proper torque on the crush sleeve or things can go bad real fast. If it is a corporate 10 bolt then the 85 should be the same and able to be swapped if the ratio is the same. It is cheap to add acrush sleeve though you should be able to figure it out, good experiance to learn by. :thumbup:
It's not a fun job so find someone who has done it before or read up so you use the proper torque on the crush sleeve or things can go bad real fast. If it is a corporate 10 bolt then the 85 should be the same and able to be swapped if the ratio is the same. It is cheap to add acrush sleeve though you should be able to figure it out, good experiance to learn by. :thumbup:
A 1980 K10 should have used a TH350 and NP205, and probably had locking hubs. If they put a TH400 in it, depending on the year it should have also been an NP205 transfer case.
The stock front axle should have been a corporate 10 bolt. The Dana 44 HD was also used in earlier models, and can be swapped in if the ratio matches the rear (not very likely).
- Verify that the locking hubs are locked, and then try spinning the drive shaft again. If they are in locked position and it still spins, then the hub is broken or something is broken inside the differential.
- Differentials on these trucks are hard to break, so I would check out the hubs very carefully. Its also easy to pull the differential cover and see what is going on inside.
- If only the crush sleeve is missing, take the yoke off and reinstall in correctly. However, a missing crush sleeve should not cause it to spin freely.
- If you need a new axle, just verify the ratio and start checking the junkyard. I think the 3.73 ratio is probably the most common for a K-10, but it can also be a 3.07 on a K-10.
- Many of the earlier trucks (73-79) use the NP203 transfer case, which has a different front drive-shaft. Check the yoke on the "new" axle to make sure it is the same as yours.
Bruce
The stock front axle should have been a corporate 10 bolt. The Dana 44 HD was also used in earlier models, and can be swapped in if the ratio matches the rear (not very likely).
- Verify that the locking hubs are locked, and then try spinning the drive shaft again. If they are in locked position and it still spins, then the hub is broken or something is broken inside the differential.
- Differentials on these trucks are hard to break, so I would check out the hubs very carefully. Its also easy to pull the differential cover and see what is going on inside.
- If only the crush sleeve is missing, take the yoke off and reinstall in correctly. However, a missing crush sleeve should not cause it to spin freely.
- If you need a new axle, just verify the ratio and start checking the junkyard. I think the 3.73 ratio is probably the most common for a K-10, but it can also be a 3.07 on a K-10.
- Many of the earlier trucks (73-79) use the NP203 transfer case, which has a different front drive-shaft. Check the yoke on the "new" axle to make sure it is the same as yours.
Bruce
hmmmm
Thanks for the replies. As far as the transfer case, i know it is cast Iron and gear driven not chain and the front shaft has been extended for the Th400, I thought about just swapping the axle because I can get one for about 150 right now and I dont like finishing a job that someone else has started because you never know what youre gonna run in too. I figure, start fresh.
Thanks for the replies. As far as the transfer case, i know it is cast Iron and gear driven not chain and the front shaft has been extended for the Th400, I thought about just swapping the axle because I can get one for about 150 right now and I dont like finishing a job that someone else has started because you never know what youre gonna run in too. I figure, start fresh.
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