Ok, so I got the gears in the third member, this is the patten I'm getting. Now going by the list of acceptable patterns in the Yukon book, this is one of them. Opinions welcomed, suggestions ready to be taken . I only want to do this once. I don't feel like putting it in the car and having it whine only to have to take it back out again. These are used Chrylser gears.


Drive Side

http://img.photobucket.com/albums/v249/BlueSS454/P5010453.jpg

Coast Side

http://img.photobucket.com/albums/v249/BlueSS454/P5010455.jpg

used gears can be a bear to setup.

what is the backlash?
how are you turning the gears?

coast side is the one to go by. it needs atleast .005 more pinion shim.

tom

I set the backlash at .008, which is what Chrylser recommends. I already took about .005 shim out of it because the pattern was way off (pinion was too deep). I was turning it by the pinion holding some load on the ring gear with my other hand.

I took it all apart again to check the pattern on the pinion gear...it's too shallow. SO I went to pull the bearing and add in more shim and blew the bearing apart so now I have to go get another $30 bearing.

tom, just got back from a band concert.

you need to turn the gears by the RING GEAR. this produces the proper pattern to work from. sorry to here you blew the bearing. you may not need the shim. tom

tom, just got back from a band concert.

you need to turn the gears by the RING GEAR. this produces the proper pattern to work from. sorry to here you blew the bearing. you may not need the shim. tom

I went back and turned it by the ring gear..pattern is still the same. I just need to find a place that has an actual Timken bearing tomorrow. I did add .005 shim to it though.

You're getting close enough that I would hesitate from going a full .005. I'd go three and see where it's at. It does need to go deeper though.

I agree with Tom. The pinion is not deep enough. The backlash shoud be about .010 on used gears. New gears are fine at .008, but not used. Pay more attention to the coast side pattern. You are looking at the drive side and making adjustments by it, but what you are not looking at is the coast side. Notice how the coast side is about to go off of the face of the tooth. Add shim until the coast side comes down to the center of the tooth.

I added some shim to it and here is the new pattern

Coast Side:

http://img.photobucket.com/albums/v249/BlueSS454/P5020459.jpg

Drive Side:

http://img.photobucket.com/albums/v249/BlueSS454/P5020456.jpg

OK, I moved the backlash to .010 from .006. This is what it looks like now:

Coast:

http://img.photobucket.com/albums/v249/BlueSS454/P5020462.jpg

Drive:

http://img.photobucket.com/albums/v249/BlueSS454/P5020460.jpg

I'm thinking like maybe a little more pinion shim here? Maybe another .003??? I'm very hesitant to do finish it, then check the pattern one last time before putting it back int he car only to find out I'm gonna have to waste another $45 pinion bearing.

I'm no expert, only done this once....but, for used gears, it's looking good now I think....I am confused as to why your wrecking bearings, you know to use a bearing splitter/separator & a hydraulic press? yes?

I'm no expert, only done this once....but, for used gears, it's looking good now I think....I am confused as to why your wrecking bearings, you know to use a bearing splitter/separator & a hydraulic press? yes?

Yes, I do, problem is I don't have a hydraulic press.

You will need to make quick friends with a local auto repair shop, bring beer, pizza, women;)....something, to be able to use, or have them use their press....it's the only correct, non-damaging way.

i agree with GMAN. it is always good to make new friends.

the pattern looks much better now. adding the .003 should help. i like to run used GM gears with a tighter BL like .006. do you have a shop manual for the chrysler gears/ rears? tom

I have the manual for the Charger that has a rear axle section. Pretty much shows the same thing every other one does. I've also been looking up info on the Dana website as well as a few other sources. I've been meaning to get a press....just haven't done it yet.

Here is how it is right now with a .032" pinion shim, and .009" backlash...

http://img.photobucket.com/albums/v249/BlueSS454/P5020466.jpg

http://img.photobucket.com/albums/v249/BlueSS454/P5020468.jpg

I'm going out for a little bit right now, but I plan on finishing this when I get back home.

i would go to a .035 shim on pinion and see what that looks like. coast contact is still too high on the tooth. used gears can be a real bear. hard to get a reliable contact pattern.

you are spinning it with the ring gear , correct? tom

This is looking MUCH better. I think you are getting very close now.

Tom, I'm wondering why you would use a tighter backlash with used gears? If the new backlash is suppose to be .008 and assuming the gears have about .002 wear on them why would you want the backlash tighter? It should be about .010 instead of .006.

I was just playing with it a little to get the pattern. The Chrysler Manual recommended .006-.008. I set it at .010" and it looks pretty good. I just got done putting it all back together....it's nice and quiet, no noise whatsoever. Those patterns in the pics were with a bearing I honed out so I didn't have to keep pressing on and off. Once I put the new bearing on...it moved both patterns right into the center, then I adjusted it so it had .010" backlash and it came out about as close as I think I can get it.

Now the other issue I need to address is the fact that it's making a cracking noise on hard turns. I don't know if it's the axle bearings or the Powerlock unit slipping. Anyone have any ideas on that?

Did you use the limited slip additive in the oil? If you didn't then you need it. If you did then give it a little time to work it's way into the clutch. If this is an Auburn then you need 2 bottles.