Gear pattern opinion

[Sean B]

This is a LJ Rubicon Dana 44 rear, factory locker, 5.13 Revolution Gears.

Stock .056 under pinion.

Got backlash set up at .008.

Coast side seems good, does it seem a tad deep on drive side?

 

[Blackjack]

Tiny bit deep.

 

[Sean B]

Tiny bit deep.

I cleaned it up and ran a pattern again, little cleaner marks I think, what do you think, take .005 out and run again to see if that puts me too shallow?

 

[hosejockey61]

At first glance I thought it might be 1-2 thou deep. After looking at it up close, I wouldn't change it and run it as is.

 

[Sean B]

At first glance I thought it might be 1-2 thou deep. After looking at it up close, I wouldn't change it and run it as is.

I took .0055 out of pinion depth and this is what I ended up with. Still .008 backlash.

Will try adding .002 or so to try it. Thanks for the help!

 

[hosejockey61]

Yeah that puts it far too shallow. I'd go back to your first setup.

 

[Sean B]

Yeah that puts it far too shallow. I'd go back to your first setup.

This was at .054 of shim under race, do you feel the .056 I had first was better?

 

[hosejockey61]

Those patterns don't compute with each other...

How does 56 look good, but your 54 here look deep? Do you tighten the bearing caps when running the pattern? This doesn't make sense.

At this point, I would rework the bracket to make sure you are truly getting it dialed in. With 54 being too deep, try a 52 to see if it goes shallow. Then home in from there.

 

[Sean B]

Those patterns don't compute with each other...

How does 56 look good, but your 54 here look deep? Do you tighten the bearing caps when running the pattern? This doesn't make sense.

At this point, I would rework the bracket to make sure you are truly getting it dialed in. With 54 being too deep, try a 52 to see if it goes shallow. Then home in from there.

Bearing caps were tight, I will run the .052 again.

 

[Blackjack]

Those patterns don't compute with each other...

How does 56 look good, but your 54 here look deep? Do you tighten the bearing caps when running the pattern? This doesn't make sense.

At this point, I would rework the bracket to make sure you are truly getting it dialed in. With 54 being too deep, try a 52 to see if it goes shallow. Then home in from there.

Yeah something is weird that was a big flip for so little change.

 

[Sean B]

Bearing caps were tight, I will run the .052 again.

This is the .052 again.

 

[Sean B]

This is the .052 again. View attachment 604562View attachment 604563

I am wondering if my setup race is the issue. I bought one and should have made one. It’s possible it’s just a touch too loose and giving the inconsistency.

 

[hosejockey61]

I am wondering if my setup race is the issue. I bought one and should have made one. It’s possible it’s just a touch too loose and giving the inconsistency.

Very well could be. 52 is shallow. Good now we know you need to be 53-55. Keep playing with it and post up. I'd lean towards the 55 since 56 looked good.

 

[Sean B]

Very well could be. 52 is shallow. Good now we know you need to be 53-55. Keep playing with it and post up. I'd lean towards the 55 since 56 looked good.

Thank you, I appreciate all the help.

I apologize for the confusion with that race, I ditched the race and did a proper one. I ran the .052 again and this is what I got.

 

[hosejockey61]

Shallow. Take it to 54-55

 

[Sean B]

Shallow. Take it to 54-55

So this is .054 with .007 backlash.

 

[Sean B]

I

So this is .054 with .007 backlash.

View attachment 604620
View attachment 604621

This seemed to get the edges more diffuse and even around the pattern, not sure if should go back to the .056?

 

[hosejockey61]

If you can't get 55 then go 56

 

[Sean B]

If you can't get 55 then go 56

Will do, I could seem to come up with a .055 pack of shims.

If you can't get 55 then go 56

So this is back to the .056. It’s actually .0563 on the mic, backlash set back to .008.

 

[hosejockey61]

Run 56. Way to stick with it