alvess

Hi.

Changed gears and bearings in my 10 bolt.
Gone from series 2 carrier with 2.73 to a series 3 carrier with 3.23.

The car is driven daily and just have some minor upgrades.
Shiftkit, KAI, higher stallspeed converter and Magnaflow.

I have just put on the sticky paint on the gear to check the alignment.

What do you think, is there any need for adjustments?

Best regards alvess

AnotherWs6

iTrader: (17)

I would call that good.

alvess

Thanks, appreciate the quick reply!

dgcustomz

iTrader: (127)

Looks a little deep to me. The edges are rounding down. Should be straight across.

homemade87

I agree with dgcustom . I would remove 2 or 3 thou from the pinion and see what it looks like before I button it up if not already . Also no mention of backlash setting .

alvess

Ok, removed 0.005 and tested again..
Backlash: 0.007-0.009

Is it to deep or to shallow?
(confused, there is contradictory information in diffrent testpattern guides)

redbird555

iTrader: (14)

Why did you take .005 out? I would suggest doing what dg said and only removed .002-.003 that looks too deep in the tooth now. Add .003 back in and recheck

alvess

Ok, will do.. so it's to shallow now?
-This is why i'am a little confused.
Three guides that claimes the opposite on what to do...

The red ring matches my pattern.

Rob WS6

iTrader: (16)

Looking at his original pics, wouldn't he have to ADD shims to center the pattern? Removing shims would only pull the pinion farther away towards the edge of the ring gear... right?

homemade87

I would add .003 back to the shim. You removed to much shim . This tells you you are in the middle of your last 2 adjustments . Set the b/l at 8 to 9 and do a test pattern and lets see what it looks like .

alvess

Ok, thanks.
Still confused over the different guides thou..

Guess, trail and error is the way to go.
Will add 0.003 to see what it looks like.. as you said.

homemade87

Don't get discouraged . And yes it is a trial and error . It is and art form to learn how to read a pattern . The pictures can help at times but usually can be confusing because different gear manufactures can have different pattern looks that add to the confusion . So trial and error it is until you get the best pattern you can . What lead me to believe you had to much shim was the coast side . It had a hard straight line at the bottom and a round moon shape at the top . The drive side had a hint of the same . This was my reason for only .002 removed .

alvess

Thanks for all help.. will keep at it.
Need some more advice thou i'am afraid.
Better but not perfect yet?
added 0.03 back in now total 0.025 shims
backlash 0.009 - 0.010 (best i could manage)

homemade87

It looks a little high on the tooth . Put the B/L at .006 or .007 . Don't change the pinion and lets see what it looks like . I would like to see the coast side also . Try to put some pressure on the pattern to get a good look at it . Don't give up . This is what it takes .

What was the original shim in the first post also . I am surprised just .002 would move the pattern that close to the toe . What was the back lash in the first post . Be sure your pinion torque is consistent . It can change things .

alvess

I should not have used the old bearing (made bigger to slide off/on easier) in the first post.
When i changed to the new bearing the mesurement was probably no longer valid.
Lesson learned:
- buy two new rear pinion bearings and make one off them bigger to use for testing.

The orginal shims is 0.027.
The backlash where 0.010 - 0.011

I keep close track of the pinion torque (15 inch lbs).

Will move the ring-gear closer to the pinion.
How much 0.005?

homemade87

That explains why the pattern went crazy . Add .003 more and set B/L at .007 and lets see where that puts us at . Get a good solid roll pattern and pictures on both sides .

silverLSWON

iTrader: (16)

your first pattern looked best. I would've added .002 to the pinion from your original pattern(first pic). that's a very very close pattern. little bit to far towards the heel on the drive side. shoot for .007 backlash. nothing more than .010

homemade87

I agree the first pattern looked best and only needed to remove a couple thou ( was to deep) When the pinion bearing was changed it changes the pattern quite a bit . First pattern is not even in play now . To many things changed. Almost like starting over at this point . Need to get close to the pattern in the first picture with the new bearing .

alvess

Shims: 0.032
Backlash: 0.005




Forth time.. no more.. hope it's ok now.

Thanks for all the help !

01ssreda4

iTrader: (96)

I ain't gonna lie, I woulda ran that first pattern. And if its a stock type ring and pinion, my bet is it woulda been dead silent.