OBX LSD How To - Page 2 - Transmission Forum

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Re: OBX LSD How To
Wednesday, December 28, 2011 2:10 AM
Updates on the done LSD?


PSN ID: Phatchance249


Re: OBX LSD How To
Friday, January 06, 2012 5:33 PM
I just purchased mine. Need to get the right pre-load shims. Do we know the specs and/or part number of the belleville washers?

Forge that I'm just going to buy it from this guy because its cheaper than buying my own washers and new bolts. Your text to link here...



Edited 2 time(s). Last edited Friday, January 06, 2012 7:13 PM

1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by: Kronos Performance

WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
Re: OBX LSD How To
Sunday, January 08, 2012 4:37 PM
Has anyone tried to use a cylinder hone to open up the ends do the axle does not stick with the bearing installed??




Jason
99 Z24

LG0/LD9 for Life
10 Year Bash Veteren
Re: OBX LSD How To
Sunday, January 08, 2012 8:34 PM
They shouldnt stick on the newer versions of the obx. Supposedly they have fixed it on all models.


1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by: Kronos Performance

WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
Re: OBX LSD How To
Tuesday, January 10, 2012 12:31 PM
Leafy (Club Jeffie FEA man) wrote:

They shouldnt stick on the newer versions of the obx. Supposedly they have fixed it on all models.


That is good to hear. Hopefully I will not get an older one when I order




Jason
99 Z24

LG0/LD9 for Life
10 Year Bash Veteren
Re: OBX LSD How To
Saturday, May 19, 2012 7:46 PM
Has anyone bothered to cryotreat the LSD or has every just run as-is?



2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R
Re: OBX LSD How To
Saturday, May 19, 2012 10:04 PM
So...I just took my LSD out of the box to look at it. Haven't taken it apart yet, but noticed this right away. There are a bunch of small holes in the casting. What do you guys think? Should I be concerned about this? Anyone else have anything similar?






Edited 1 time(s). Last edited Saturday, May 19, 2012 10:04 PM


2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R
Re: OBX LSD How To
Saturday, May 19, 2012 10:25 PM
Cursed Cav wrote:

So...I just took my LSD out of the box to look at it. Haven't taken it apart yet, but noticed this right away. There are a bunch of small holes in the casting. What do you guys think? Should I be concerned about this? Anyone else have anything similar?



Looks the same as the one at the start of this thread. I would assume it is okay. Mine was the same, except I didn't have all those air dots up above the holes.









Re: OBX LSD How To
Friday, May 25, 2012 12:56 PM
did the OP ever do the tear down/install pics? and LSD sounds like a nice little addition

btw, i know its probably 'safe' and not a huge deal to most... but i dont like the idea of a 'solid' piece of metal thats being abused quite abit having air pockets and losing what could easily be manufactured with 100% integrity... though it just must not be a major stress point or it'd be a concern


04 Cav. 2dr. 5spd. My DD. 'Nuff said.
Re: OBX LSD How To
Friday, May 25, 2012 1:23 PM
I would like to know what the shims specs are if anyone has them, I found a video on youtube but it was in a foreign language.
Re: OBX LSD How To
Friday, May 25, 2012 2:20 PM
SilvrSunfir wrote:

I would like to know what the shims specs are if anyone has them, I found a video on youtube but it was in a foreign language.


Do you mean the cone washers, aka belleville washers? Trust me its cheaper to buy the kit from the guy, rather than trying to piece together something close to correct from mcmaster.


1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by: Kronos Performance

WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer

Re: OBX LSD How To
Saturday, May 26, 2012 9:50 AM
Leafy wrote:

SilvrSunfir wrote:

I would like to know what the shims specs are if anyone has them, I found a video on youtube but it was in a foreign language.


Do you mean the cone washers, aka belleville washers? Trust me its cheaper to buy the kit from the guy, rather than trying to piece together something close to correct from mcmaster.


No I want to know what the specs are for the shims tat goe between the carrier bearing and differential.
Re: OBX LSD How To
Saturday, May 26, 2012 11:17 AM
you have to measure the pinion depth and from there you figure out what size shim you need and purchase them thru gm


RIP Cpl Derek Kerns And Cpl Robby Reyes
24th MEU VMM-261 (REIN) V22 Crewchiefs
11 April 2012 Morocco (African Lion)
Re: OBX LSD How To
Monday, June 18, 2012 6:22 PM
Keeping this front page!



SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
RACER X - '78 Opel Kadett W41 Swap

Re: OBX LSD How To
Tuesday, July 03, 2012 4:13 AM
ballsdeep!


Built&Boosted moar
04 Cavalier Turbo r.i.p my baby
2nd place 2009 GM tuner bash qwick 8--holla

Re: OBX LSD How To
Tuesday, July 03, 2012 2:03 PM
So...I've got a bit of a problem. Dropped the LSD and trans off at the transmission shop. They are having a problem with the LSD fitting into the case. Apparently the LSD itself is rubbing on part of the case when they are trying to put it back together. He at first thought it was the bearing and removed the shims, same problem. I thought it possibly needed to be machined down like others have had to do on the surface where the bearing sits. But it doesn't sound like that is the problem. I may have to go there and see for myself and take pictures. But has anyone else had this problem before?



2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R
Re: OBX LSD How To
Tuesday, July 03, 2012 11:48 PM
Which side is rubbing? Can they put the case together? I am willing to bet it needs machined...





Re: OBX LSD How To
Wednesday, July 04, 2012 9:04 AM
I'm not sure which side is rubbing. It was hard to tell over the phone. I'm going to go there tomorrow to see for myself. From what he said, they couldn't get the case back together. He was fairly certain it wasn't the bearing that was hitting, but the LSD itself.

I had taken the LSD apart and ordered new belleville washers and installed them like so: )()()( Maybe that configuration added too much distance making the LSD "longer"? I'm not sure at this point...

And just to be sure, the part in yellow is what you guys have had machined down, correct?




2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R
Re: OBX LSD How To
Thursday, July 05, 2012 10:04 AM
In another thread I found, you said that you machined the case. Was that a typo?

jmarks82 wrote:

The other side has a tighter tolerance for the gear to case clearance. The case was really easy to machine.




2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R
Re: OBX LSD How To
Thursday, July 05, 2012 10:16 AM
he prolly meant the case of the lsd


RIP Cpl Derek Kerns And Cpl Robby Reyes
24th MEU VMM-261 (REIN) V22 Crewchiefs
11 April 2012 Morocco (African Lion)
Re: OBX LSD How To
Thursday, July 05, 2012 10:22 AM
Ahhh, that makes sense. I bet you're right. Now I just need to verify that the yellow part is what was machined, and how much. I think it was .004"...





2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R

Re: OBX LSD How To
Thursday, July 05, 2012 11:30 AM
Okay, so I just got back from the trans shop and saw the problem for myself. I've got an odd situation. I need the exact opposite of what everyone else has done. The ring gear side of the LSD needs to be machined down, and the other side need to be shimmed. Here's what is going on...

This part of the LSD:


Is hitting this part of the transmission:





Edited 1 time(s). Last edited Thursday, July 05, 2012 11:32 AM


2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R
Re: OBX LSD How To
Wednesday, July 11, 2012 8:17 PM
Any luck?





Re: OBX LSD How To
Wednesday, July 11, 2012 8:22 PM
Haven't heard back from the trans shop yet. He was going to machine down the ring gear side, and try and add more shims to the opposite end. If that wasn't enough, he was going to machine down the edge of the LSD. I should know sometime this week what the result is.



Edited 1 time(s). Last edited Wednesday, July 11, 2012 8:23 PM


2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R
Re: OBX LSD How To
Wednesday, August 29, 2012 12:19 PM
What`s the easiest way to get the differential races out.
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