locker back lash ???

[Rubi03 jef]

ok so heres my issue


i put in a set of gears about 6 months ago . maybe longer doesnt matter

lately ive been getting a loud clunk in my rear end every time i shift or let off and get back on 
so i opened the rear end and my pattern on my gears or good they havent moved the back lash is good on the gears
but i notice if i hold my ring gear and turn the tire there alot of movement befor the ring gear turns
is this normal
should a locker (stock rubicon locker) get that much play befor the whole thing moves or is it worn out and time to change

anyone that might be able to shine some light that would be great


thanks

[morerpmfred]

Do not know about selectable lockers but on auto lockers such as Detroit , Aussie , lockright etc there is up to 25 degrees driveshaft rotation before the wheels start turning . The dog teeth on the locker can be open on one side when parked . then you start moving again and the other side locks up and the locked side unlocks and then as there is differentiation it goes right back to where it was counting for the up to 25 degrees driveshaft rotation before engagement. You notice this some times when parkedand you let the clutch out and it feels like everything is turning but you are not moving then you move . Is your locker unlocking properly ? or stuck half way to locking ? or that's just the way they work ?

[FiEND]

check your driveshaft.  lots of play in the double cardan makes a lot of clunking.

[Rubi03 jef]

i checked the drive shaft its good . even when i put it in first and the truck is off let the clutch out it roles forward 4 inchs .

but its not my gear set up

spyder gears inside might be worn out abit ?? just wondering if thats something that can happen

[Bigg Rudd]

I'm interested in this as well I have the same problem going on. A buddy of mine said it could be the crush sleve getting compressed over time and allowing the pinion to have some movement. I am looking to do gears soon anyways so if I see what the issue is when I do that I will post back on here for you.

[Rubi03 jef]

its not anything to do with the gears  there pattern and black lash is perfect

i have excesive back lash or movement in the locker its self . i can hear everything moveing inside when i turn the tire and hold the ring gear

so someone told me it could be the syder gears in the locker that are all worn out

so i guess only way to find out is to open it up .. so time to price out parts   if its costly then im just ganna throw a spool in the rear and call her good

full time locker   helps with the drifting in the winter

[Bnine]

You have to tear down the locker to inspect the gears.

If you dont have noise and crunching when cornering, or a constant clicking while driving, that locker should be ok. Like I said, you might want to look at the suspension.

[Bnine]

A buddy of mine said it could be the crush sleve getting compressed over time and allowing the pinion to have some movement.

Not even close. Crush sleeves dont slack off, pinion nuts do, and the result is leaks, bearing failure, and bearing noise. Bad pinion bearing dont really contribute to "clunks". The change in backlash via a bad pinion is minimal. If you have an audible clunk due to gear backlash, the rear end is toast and needs a full re build.

[Bigg Rudd]

If you have an audible clunk due to gear backlash, the rear end is toast and needs a full re build.

As in new R&P or whole rebuild on the TrueTrack?

[Bnine]

As in new R&P or whole rebuild on the TrueTrack?

As in the R&P would have to be SEVERELY trashed for you notice a clunk from them. So new gears and bearing would be in order. Seperate issue from the carrier.

Are you referring to a detroit trutrac, or mopar track lock? Its really rare for detroits to wear out and require a rebuild. About the only time they ever fail is when they get smashed internally due to the recoil of a snapped axle shaft.

[Bigg Rudd]

It's a detriot. So far I have rebuilt all the joints in my control arms, new tranny mount, changed the u-joints. Any insite on what the next best plan of attack would be would be great!

Thanks

[Bnine]

If you are getting clunks out of a detroit, it could possibly be normal detroit operation. They are a bit clunky when they hook up.

What fluid are you running? Dont run synthetic, or friction modifier in detroits. It will hinder the performance of the locker.

[Bigg Rudd]

I have regular gear oil in it with no modifier. I don't think it would be the Detroit as it clucks before anything moves at all. If I come off the clutch really slow it won't clunk.

[morerpmfred]

That is what the owners manuel for the locker says it is supposed to do . Read the second line in my earlier post and for every lock and unlock it goes click that you can feel and hear slightly . If you baby the clutch then nothing , if you launch hard then again nothing cause it is locked up . If you think it clicks to much then go to a different weight of oil depending if it only clicks when hot or only when cold . It should also do the little but wiggle when you shift gears asthe locker is unlocking one side and then locking right back up again but you can not hear it cause the diff case is turning at a faster speed then when parked or at really slow speed.

[vantagetes]

I second the suspension inspection, somethings loose or is missing a bushing.