10 Bolt setup.

[oneluckypops]

Ok guys need some more help.

I have a 10 bolt that has 4.56 gears in it that were just put in (I was told about 10000 miles on them) I just put the Differential in my truck.

Now for the Problem. I dont think that they have it set right, When you put it in gear in clanks pretty bad. I assume they have the pinion set to tight, But I am not expert on Differentials.

Can anyone explain how to set these rear ends up? I would like to get this resolved before it fails totally.

[daddy]

Clanks once or clanks as you drive?

If it just clanks once, that could be your slip yoke.

What exactly are you driving again?

[oneluckypops]

Sorry forgot to mention that.

96 Chevy ECSB 4X4.

My old rear end had 277,000 miles on it and it didnt make this noise.

It clanks when put in gears and and also makes a clank noise when turning SOMETIMES. Also hear it sometimes when you snap the throttle.

I checked the u-joints and there fine.

I had my uncle watch the pinion when I put it in gear and he said it had about 1/4 turn of play in it.

[oneluckypops]

WOW all the members on here and noone can help with a 10 bolt set up?

[daddy]

WOW all the members on here and noone can help with a 10 bolt set up?

Give people some time. Traffic hasn't exactly been crazy this afternoon. The guys who can offer up some help will.

[Alljackedup408]

how much back lash do you have?

[oneluckypops]

Yea I know daddy. Been gone all day and was suprised to see every one else must have been too :D.

I have not Idea what the backlash is set at i havent tore in to it yet. (kind of worried what I am going to find). I just took it on a 30 mile drive and it did good till I got in town and turned the first corner then it started to clank even after I turned it would still do it.

I was looking at O'reillys website and found a bearing and seal kit. It looks like it comes with:\

Pinion Bearings and Races
Carrier Bearings and races
Marking Compound
Brush
Sealant
Pinion Seal

Is there any other kits that I would be better off getting? I wouldnt mind replacing the axle bearings and seals while I am in there. What about the spiders? would it be a good Idea to replace them (with out seeing them)?

[Alljackedup408]

Did you put the gear in the rear end.. or just another whole rearend? Quick check for back lash is take the drive shaft out.. and move the pinion back and fourth... you should have a LITTLE play.. but not much. if its real sloppy thats one issue. Idk how advanced you are with differentials....

[oneluckypops]

Did you put the gear in the rear end.. or just another whole rearend? Quick check for back lash is take the drive shaft out.. and move the pinion back and fourth... you should have a LITTLE play.. but not much. if its real sloppy thats one issue. Idk how advanced you are with differentials....

I changed the complete housing assy. Which I was told was re geared with richmond gears with a master install kit.. and a Powertrax Locker

When you hold your foot on the break and place the Trans in gear the pinion rotates aprox. 1/4 turn then you hear the clanking noise.

I had it on jack stands with the driveshaft removed and tried to turn the Tire it was hard to turn it. (the brakes are not overly adjusted you can slide the drums on and off easilly enough). I could feel and hear something was dragging (like a worn bearing)..

I am quite sure the backlash is WAY OUT as well as the pinion depth. I have never had to set a differential up before though so trying to get a better understanding before i start to tear in to it.

[Alljackedup408]

OMG 1/4 turn???? umm.. wow dont drive it any more... if its that extreme you will just destroyed the ring and pinion gear. Either they didnt set the pinion depth correctly or the ring gear is not shimmed correctly...

you should be able to just grab the pinion and slightly move it back and fourth.. not 1/4..... wow! Check and see if the pinion nut is tight.

[drperry]

Yeah, at most, you'd only want 1/16th or so of an inch of play... At the very most... :lol:

[Alljackedup408]

Yeah, at most, you'd only want 1/16th or so of an inch of play... At the very most... :lol:

yes.. at the most... hahah.

[oneluckypops]

OMG 1/4 turn???? umm.. wow dont drive it any more... if its that extreme you will just destroyed the ring and pinion gear. Either they didnt set the pinion depth correctly or the ring gear is not shimmed correctly...

you should be able to just grab the pinion and slightly move it back and fourth.. not 1/4..... wow! Check and see if the pinion nut is tight.


Do you think the install kit I listed earlier will be all that is needed to fix it? What about the Locker? Is it worth keeping it or should I ditch it?

[Alljackedup408]

The kit will definitaly help the rear out! i wouldnt trust the pinion bearing if it has that much play.. could be damaged now. Id say yes to the kit... but you will still need to tighten up the pinion to ring gear clearance. If the locker is in good shape id say keep it!!

[oneluckypops]

anyone ever purchased this kit? Wondering of the quality.
http://cgi.ebay.com/ebaymotors/Chevy-GMC-GM-8-5-10-Bolt-Master-Bearing-Rebuild-Kit-NEW_W0QQcmdZViewItemQQhashZitem3352ca9404QQitemZ220432339972QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
This kits shows the shims also, the one at Oreillys does not show or say anything about carrier shims.

[Alljackedup408]

looks like a nice kit. never purchased it!

[oneluckypops]

well we will find out end of next week then. I think I will order it monday

[PenguinLTZ]

Oh god man, yes there is a ringgear backlash issue. It's all in the side shims. Do not drive

[Alljackedup408]

well we will find out end of next week then. I think I will order it monday

:thumbs:

If you HAVE to have your truck this week... you can try moving shims around... but if not i wouldnt worry about it til you are ready to do the whole thing.

[oneluckypops]

well we will find out end of next week then. I think I will order it monday

:thumbs:

If you HAVE to have your truck this week... you can try moving shims around... but if not i wouldnt worry about it til you are ready to do the whole thing.


I am going to swap my 3.42 rear end back in andthe VCM for those gears till i get the parts and the time. Construction is starting to pick up aswell as Odd tranny jobs, so hopefully this coming weekend I willl get to work on it.

[Bigredmariner]

There's some useful info here, I don't know if you have dial indicators or not so this may not help you. I have all this stuff so taking the measurements isn't a big deal for me. If you don't have dial indicators then you can do it the old fashioned way with using grease as a visual indicator. I'll see if I can find something on that and post here too. Here's the link for a good how to.

http://www.ringpinion.com/Content/HowTo/TechnicalInstructions/Pinion_Depth_Setting_Kit.pdf

This may help too from Richmond Gear.

http://www.richmondgear.com/ringandpinion.pdf

Here's more on patterns and set-up.
http://www.tpub.com/content/construction/14273/css/14273_198.htm

[Bigredmariner]

Oh and yes a 1/4 turn on the pinion before it fetches up on the ring gear is extremely excessive and shouldn't be driven unless you just have too.

[Draenor]

As the others said, its too much play.

Am I missunderstang the first post, but did you say the new gears have 10K miles on them already?

Those gears may of been toast when you bought them.

[oneluckypops]

As the others said, its too much play.

Am I missunderstang the first post, but did you say the new gears have 10K miles on them already?

Those gears may of been toast when you bought them.


Ok guys heres a write up I found for a gear install. Check this out and tell me what you all think.

http://sethirdgen.org/10bolt1.htm

[Mcdiver]

take it to a tranny shop, they should be able to fix it cheap and fast if it is not damaged already

[Alljackedup408]

As the others said, its too much play.

Am I missunderstang the first post, but did you say the new gears have 10K miles on them already?

Those gears may of been toast when you bought them.


Ok guys heres a write up I found for a gear install. Check this out and tell me what you all think.

http://sethirdgen.org/10bolt1.htm

thats a good write up.. as from what i saw.

[oneluckypops]

As the others said, its too much play.

Am I missunderstang the first post, but did you say the new gears have 10K miles on them already?

Those gears may of been toast when you bought them.


Ok guys heres a write up I found for a gear install. Check this out and tell me what you all think.

http://sethirdgen.org/10bolt1.htm

thats a good write up.. as from what i saw.


Seems pretty easy. I do have a few questions.

The way i took it ther are NO shims between the carrier and carrier bearings. correct? any shimming for the carrier is done between the race and the housing? Also if the richmond gears are trashed then what brand would you reccomend using? The front differential was "supposed" to be "professionaly" rebuilt by axle boys in St. Louis with Yukon gears.

[Bigredmariner]

Here's another good write up done by a member of another forum. http://www.performancetrucks.net/forums/showthread.php?t=460061

[Alljackedup408]

yes the bearings are pressed onto the carrier.. and all shims go between the race and the housing. as far as brands... richmond is a good brand.. yukon makes good stuff too.

[oneluckypops]

Update for the ones that have helped.

Ring and pinion seem to be in good shape.
I didnt have the mag base with me so not exactly sure what the backlash is, but it seems ok.
Pinion seems to have a little to much on preload.

DS carrier bearing has some pits in it and is a little rough, PS is nice and smooth.
The carrier also has some damage. I talked to the guy I got it from and he said that happened when the previouse gear set shelled.

Now for the bad news the richmond powertrax locker has a tooth busted on one of the center pieces.

Now My thinking is the pinion has to much preload on the pinion bearings. Also I think the damage that has been done to the carrier is causing a balancing issue which is the cause of the carrier bearing being ruff.

The guy said that he would send me all the old spiders. But would I be better off getting a new install kit and using the gears from that differential and just regearing mine?

[Alljackedup408]

You could do that... is there any differences in the axle housings?? like disc brakes to drum or ect? You could always unbolt that new gear and bolt it up to your old carrier.. and then stick new bearings in it.... but make sure you move the pinion with it.. do not mismatch.

[oneluckypops]

[ and the damaged is a QUOTE=Alljackedup408;271552]You could do that... is there any differences in the axle housings?? like disc brakes to drum or ect? You could always unbolt that new gear and bolt it up to your old carrier.. and then stick new bearings in it.... but make sure you move the pinion with it.. do not mismatch.[/QUOTE]


Thats what I am thinking about doing. I havent had a chance to chuck the damaged carrier in the lathe to check for out of roundness yet. But from the picture wouldnt you think there could be an issue there?

Edit no there is no difference in the 2 differential housing both have the same brakes.

[Alljackedup408]

there COULD be... depends how hard the rear end locked up when the spider gears gave away.. if thats what happened...

i would get it checked.. or just swap with the good one. usually carriers explode in parts tho.. lol.. ive got one in my garage now thats in 3 pieces.