Differential Experts

[KS 82 GT]

Is this a good wear pattern?

The diagrams I've seen aren't very clear.

[Shamrock]

I thought u meant differential equations lol

[KS 82 GT]

I thought u meant differential equations lol

That would be when it's time to step back and realize that the project has gotten just a little too deep :smack:

[dancorrell]

Jim,

From that photo, it appears ok. Do you know if your backlash and preloads are ok?

[KS 82 GT]

Thanks!

Backlash is about .012" and preload is about 25 in-lb.

[dancorrell]

Backlash is on the high side of specs (.008-.013). I don't know about the preload. I just do it by feel. It sounds like you're all set.

[Silverfox]

looks deep to the heel....but should work fine.

[KS 82 GT]

That's kind of what I was concerned about. The drawings they give could've been interpreted to say that was good or too deep. It's kind of in between what the drawings show. I'll run it. I've had way too much fun with this dumb thing already.

Thanks!
Jim

[Saleen Guru]

That is a good wear pattern...you want your wear mark right in the center of your teeth...that way you won't whine or roar. back lash is a little on the high side but you probably won't notice it...just run with it...usually overthought most of the time...some people just slap em in and go with no problems...But not me...I'm like you, I like all the numbers to be within specs....Who is setting that up...You? looking good so far...what shims did you use? Just curious.

[KS 82 GT]

Yeah, I'm the one setting it up. It's the first one I've worked on.

For the pinion I'm using the .028 shim that came with it. When I mocked it up it seemed about right. On the carrier I used the thick spacers that it came with and in the same locations. This gave me the .010"-.012" backlash. That isn't the easiest thing to check. On the Traction-Lok, I packed them with alternating frictions and spacers and switched from the .060" shim to .045". This actually put the axle shafts against the pinion shaft, so it's tight.

When I get the brake system changed over, I guess I'll find out how I did on it. It's gotta be better than that growly 7.5" that I pulled out this afternoon.