Since the gears are new you can see the wear pattern with out gear marking compound. So how does it look?



Hey, that doesn't look like an open differential!

 

It's hard to tell, you really need marking compound. Coast looks good, drive is a little off, may need a little less backlash and deeper pinion.

 

I dont know looks kinda bad you better take that out and send it my way

 

looks like the pinion is a tad shallow. Did you use a depth gauge to set it?

 

I didn't set it, I took it to a shop.
I don't have some of the tools needed for the job and having never done it before I knew it would probably take a solid day per axle if I were to do it. And that's after taking the time to make a shop press and a housing spreader. I'm slow when working on something anyway. On top of the time it would take, it's cold and I didn't really want to mess with it with frozen digits.

I was looking at Randy's site and he says that the important wear marks are face to flank and that an ideal heel to toe wear pattern is hard to obtain and trying to do so will lead to frustration and a noisy gear set.

From the pictures it looks like an ideal face to flank wear pattern to me. Since the gears only have 500 miles on them, they don't have that mirror like finish where the ring and pinion meet and you can see that the darker part of the teeth haven't made contact.

Hahns, see what you mean by deeper pinion. If the pinion were deeper then I would also have to adjust the carrier more to the driver side of the axle because that would put the pinion more toward the flank of the teeth and that's where the frustration that Randy's tech article was talking about would come into play.

 

Them gears look fine. The important question is - What did you find on the magnet???

 

A little bit of onyx colored goo, about like what you see on the magnet in the transmission pan, only the particles were a lot smaller.

 

how your truck feel now with the 4.10. you let it rip yet ?

 

I did a little last night but I couldn't do it from a stop because it's raining.
It'll push ya back pretty hard from a 25mph roll.
I hit it at about 1/2 to 3/4 throttle from 3 or 4mph roll and spun the tires. I need a dry day so I can let it rip from a stop.