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Lets play “whats wrong with my rearend”

badmix

1/2 ton status
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Location
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1984 k5 165k miles, 305cid , 700r, all stock

Stock axle housing, strange chromoly axles, 4:10 gears, loc-rite locker.

Street driven, never towing anything, drive about 2-3000 miles a year, if that.

Forward, sounds like playing card in bicycle spokes.put in reverse and it clangs.

Stopped, in neutral, can turn drive shaft aLmost 1/2 around.

Taking it to shop tomorrow to pull cover.
 
Could be the carrier is broken. My original 10 bolt in my 89 Jimmy died a couple of years ago, the truck would still drive but there was clanging etc. Pulled the cover and found several broken off ring gear teeth but did not realize exactly what had happened until I had the axle out and on the workbench and went to remove the carrier from the housing and one of the big carrier bearings just fell right off when I pulled the carrier out. Upon further inspection, the piece of the carrier that the bearing was pressed onto was still inside the bearing. The whole carrier had to be replaced.
 
Could be the carrier is broken. My original 10 bolt in my 89 Jimmy died a couple of years ago, the truck would still drive but there was clanging etc. Pulled the cover and found several broken off ring gear teeth but did not realize exactly what had happened until I had the axle out and on the workbench and went to remove the carrier from the housing and one of the big carrier bearings just fell right off when I pulled the carrier out. Upon further inspection, the piece of the carrier that the bearing was pressed onto was still inside the bearing. The whole carrier had to be replaced.

Carrier would be my guess too. When a carrier breaks all the clearances on the whole diff are are off.
 
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I still have old spider gears, any chance its the loc-rite locker itself ?

Lockers eliminate side gears and spider gears, so it could not be that. The locker itself is a possibility. If the teeth on the locker are worn that is possible. Won't really know until it is taken apart.
 
Ok, what does the fact that i can turn driveshaft by hand 1/2 way around ? What would allow that to happen
 
Ok, what does the fact that i can turn driveshaft by hand 1/2 way around ? What would allow that to happen

Massive backlash between the ring and pinion, which could be caused by a variety of things like bad pinion bearing, etc, etc.
 
Obviously have no idea, but truck was 100% stock when i got it, had tall gears and i had 4:11s installed along with yukon axles and later on put loc rite in. This was all in 2005. It probably has 20k miles on it since, if that much.
 
Obviously have no idea, but truck was 100% stock when i got it, had tall gears and i had 4:11s installed along with yukon axles and later on put loc rite in. This was all in 2005. It probably has 20k miles on it since, if that much.

This is only a guessing session right know. It's time to take it apart, and start a knowing session.
 
Lol, i know. Jus brain storming before tomorrow. Thought it might be on of those “ this happens all the time”, enough for educated guessing. Only so much can go wrong in there, my suspicion is on the locker, they jus act so unrefined.
 
The Lock Rights have a ton of slop in them. Also do you have a hardened cross shaft? They are required for a 10b but they don't really tell you that and you have to buy it separately...
 
Just got back, took loc rite out , put factory spider gears in, no noise and very lil “slop”, at some point in future, carrier and pin and spider gears will need replaced. There is still a lil movement / play when hand turning driveshaft. But for now, its quiet and i hardly drive it, couple thousand miles a year, if that.

So a lil play in locker, carrier, pin and it equates to alot of play over all.

There was no visible damage or excess wear on any part, ring and pinion looked great.
 
Mine did what you describe when I broke the inner teeth off on my Detroit. It would slip until it caught a good tooth then lock in and ping. Would not ratchet around corners anymore either. I did the same as you and put back in the stock spiders and just left it that way. I only wheeled light trails anyway but only drive mine like 500 miles a year now. I’m just going to leave it open now.
 

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