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View Full Version : Welding of Mazdaspeed LSD

CrazyCaker
October 24th, 2006, 07:18 PM
Here are a few pics of my welded mazdaspeed LSD. The welds are done using a stainless steel TIG weld. It is very important that these welds are done evenly so that the LSD remains properly balanced. The welds also do not require excessive heat, you may notice that some of the welding jobs posted on MSprotege have burn marks on the rivets near the welds.

If you have questions, please feel free to PM me.

* note, the pink gear on my LSD is a speedo gear and is not needed on the P5 or MSP. It is used on cars without ABS (MP3 for example), but does not hurt if it is present on either.
tekkie
October 24th, 2006, 07:23 PM
looks good man

whats the pink thing? lmao
ChopstickHero
October 24th, 2006, 07:37 PM
very nice. i'm sure this will take all the abuse you can throw at it. i read that people with a welded LSD notice more transmission noise/whine. any truth to this?
CrazyCaker
October 24th, 2006, 08:17 PM
i read that people with a welded LSD notice more transmission noise/whine. any truth to this?

I'm not sure, I'll let you know though. Maybe they didn't change both bearings?
CrazyCaker
October 25th, 2006, 11:13 AM
Guys I posted this thread as info for anyone who was wondering where, what and how to weld the mazdaspeed LSD. I think keeping it some what clean would be most beneficial.
CrazyCaker
October 25th, 2006, 01:56 PM
very nice. i'm sure this will take all the abuse you can throw at it. i read that people with a welded LSD notice more transmission noise/whine. any truth to this?

Mike, I was just talking to Steve (NSN) and he has never heard of this problem with any of the welded lsds. He says he has done dozens, and this is the first time he heard any kind of nonsense like that. Where did you get this info?
ChopstickHero
October 25th, 2006, 02:00 PM
Mike, I was just talking to Steve (NSN) and he has never heard of this problem with any of the welded lsds. He says he has done dozens, and this is the first time he heard any kind of nonsense like that. Where did you get this info?

where else, on US forums. lol. well, i was just wondering why it would make noise if any. perhaps that's what happens when it is not correctly welded and balanced? not sure.
CrazyCaker
October 25th, 2006, 02:55 PM
where else, on US forums. lol. well, i was just wondering why it would make noise if any. perhaps that's what happens when it is not correctly welded and balanced? not sure.

It could be, but more likely it's bearing lash.
B6T
October 26th, 2006, 09:06 PM
Just wondering why you went with a stainless filler rod? Does it weld better to cast or what?
CrazyCaker
October 26th, 2006, 09:46 PM
Just wondering why you went with a stainless filler rod? Does it weld better to cast or what?

I was recommended stainless, but you can also use nickel as well. The lsd is cast steel.
B6T
October 28th, 2006, 07:47 PM
That's weird, because stainless is more brittle then carbon steel (which is what the LSD probably is).
solo.
March 13th, 2007, 01:01 AM
Just reviving this from the dead. But does anyone know where I can get my LSD welded?:confused:

I just want a piece of mind while driving.:rolleyes:
angeloTNT
March 14th, 2007, 08:13 AM
Just reviving this from the dead. But does anyone know where I can get my LSD welded?:confused:

I just want a piece of mind while driving.:rolleyes:

I would also know where to get it welded...
and if the LSD is welded would it void the warranty on the LSD? or its not covered under warranty?

thanxz
Logan
March 14th, 2007, 09:09 AM
It will require removal and disassembly of your transmission to have the LSD welded.
Any competant machining shop SHOULD be able to do it for you, it's just a case of convincing them that they want to...
P5dude2
March 14th, 2007, 04:58 PM
i am getting my done this weekend at exotic motoring..let me know if you are interested
solo.
March 14th, 2007, 05:19 PM
i am getting my done this weekend at exotic motoring..let me know if you are interested

I'm interested, PM sent!
Aitch
March 14th, 2007, 06:44 PM
i am getting my done this weekend at exotic motoring..let me know if you are interested

I was just going to mention Alex and the crew. I'm supposed to go there on Monday to get my exhaust finished up (assuming the install goes as planned on the weekend. Felix, mention it to Alex, I was thinking of approaching him to become an Affiliate/Sponsor too.
solo.
March 14th, 2007, 09:31 PM
Quick, someone do a GROUP BUY for the WELD!!
angeloTNT
March 14th, 2007, 10:53 PM
^why dont u start it?
solo.
March 15th, 2007, 12:23 PM
^why dont u start it?

Cause I don't know that store. P5Dude2 said he was going to contact him today. So hopefully he(she:confused: ) brings us some good news!:)
P5dude2
March 15th, 2007, 09:32 PM
i talked to Alex today about the LSD, he is up for it. $80 for the job he quoted me.
thekid
March 16th, 2007, 08:17 AM
^ Good to know...

Now everyone just has to deal with:
- 2.5hrs to uninstall their tranny
- ?hrs to remove LSD
- ?hrs to reinstall LSD
- 2.5hrs to reinstall their tranny
CrazyCaker
March 16th, 2007, 08:25 AM
^ 2.5 hrs for removal and install? lmfao. More like 4-5 hrs if you do it yourself.
thekid
March 16th, 2007, 08:34 AM
^ 2.5 hrs for removal and install? lmfao. More like 4-5 hrs if you do it yourself.

Dealer charges 5hrs total for tranny swap.

My tranny swap took about 5hrs total (removal and reinstall). There were two of us there, but 80% of the time only one of us could be doing work.
CrazyCaker
March 16th, 2007, 08:56 AM
^ yeah that's about right. Then when you add in the time for taking the tranny apart and installing the lsd, you can easily add another 2-3 hrs. and that's if everything goes somewhat smoothly. First timers doing this can expect to spend a good 10 hr day on this!
P5dude2
March 16th, 2007, 11:34 AM
This is definately not a simple project like an intake, but do keep in mind, if you are gonna mod your car you always have two options. You can do the work yourself, and don't whine about the time it takes OR pay someone to do the work for you. :D
vanden_jason
March 17th, 2007, 05:42 PM
I was looking at protegegarage and their LSD kit, I was under the impression that it could be bolted in... is this true or does it actually have to be welded in?
P5dude2
March 17th, 2007, 05:58 PM
it is a directly replacement...the welding portion is a reinforcement of the LSD in case the rivets snap.
Logan
March 17th, 2007, 06:10 PM
ya, bolted in after the transmission is removed from the car and taken apart...
CrazyCaker
March 17th, 2007, 08:38 PM
not bolted in, rather "dropped in". But you must dissamble the tranny to do it, which is the fun part.
CrazyCaker
March 24th, 2007, 04:50 PM
Good deal for someone looking for an lsd... http://www.mazdas247.com/forum/showthread.php?t=123664969. Pick it up, get it welded, and install it.
kamon8404
March 27th, 2007, 03:56 PM
Did anyone ever here of getting reinforcement welds on the bottom too?
onequickmsp
April 17th, 2007, 05:04 PM
Ok, if I wanted to weld my LSD? how can I contact his Alex guy??