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Welded Diff

Old Mar 24, 2008 | 06:11 PM
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Default Welded Diff

I did a lot of searching and researching before deciding I wanted to do it...

then last friday I bought an open diff and had it welded and replaced the vlsd.

I thought a few might be interested in the results.

Why did I do it? because was less than $200 and a perfect lock, not relying on mechanics or viscous.

How does it feel when drifting? awesome, kicks out easier, holds a drift easier, is just a whole lot of fun

How does it feel daily driving? absolutely fine, kick it out when I want to, but drive normal when I want to, very predictable cornering

Does it feel weird at all? yes, lol, it chirps on tight turns, gets a bit splashy on a fast tighter corner, but is predictable, you always know what it is going to do

Is it dangerous in driveability? no, I don't feel unsafe ever, I feel like I always know what it is going to do now

Is it fun? yes

Does a welded diff hold or ever break? No. I had a shop called Toy Box Auto do it, they do four wheeling truck diffs that hold thousands of pounds of low geared torque, it will last forever... or as forever as anything can last on a car, ha.
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Old Mar 24, 2008 | 08:13 PM
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welded diff = drifting.....
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Old Mar 24, 2008 | 08:59 PM
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also works pretty well for HPDE/Time Attack since it makes heat not an issue and makes your turn in more predictable.

I'll put it to that test soon.
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Old Mar 24, 2008 | 09:08 PM
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interesting, never thought about that before.
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Old Mar 24, 2008 | 09:16 PM
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i googled, searched on here, some other places.... didn't see anyone with a 350z and welded diff.

Maybe 350z owners just generally have a bit more money and always purchase aftermarket? not sure... but I like it welded
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Old Mar 24, 2008 | 09:27 PM
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I know someone who did this on their 240, first time for a Z though.
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Old Mar 24, 2008 | 09:32 PM
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yeah, 240's and other popular chassis do it all the time. half the diffs at every drift event are welded.
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Old Mar 24, 2008 | 09:32 PM
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I know numerous people that do this on their mudding trucks. Never on a Z.

+1 for being the flagship, or at least the only known one now.
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Old Mar 24, 2008 | 09:54 PM
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It doesn't get annoying driving with it at all. The guy I know whenever he makes a turn it chirps. I had an old truck with a welded diff and it was not very fun to drive on the street.
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Old Mar 24, 2008 | 10:36 PM
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Old concept with Older cars that clunked anyway.ROUND track and drifting yah.I woould never do to a street car.
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Old Mar 24, 2008 | 11:14 PM
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welded diff equals slower through corners. this would never be done for a grip car trying to go as fast as possible.


would be great for drag racing and drifting, we weld base model diffs for drifting all the time.


always faster with a high quality LSD through corners.


also, it can break, be VERY careful in the rain, it will spin out very very easy. also sucks pushing if anything ever breaks.
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Old Mar 24, 2008 | 11:18 PM
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If anyone is interested, I'm basically giving away an open differential that could be welded.
Pay shipping and paypal only. If you are feeling guilty about free, send me a few bucks

https://my350z.com/forum/drivetrain/299873-fs-oem-3-5-ring-pinion-open-differential-cover.html

PM if interested

pp

Last edited by palepony; Mar 24, 2008 at 11:24 PM.
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Old Mar 25, 2008 | 04:55 AM
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I daily drive on a welded diff. I dont mind it at all. Just have good tires.
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Old Mar 25, 2008 | 06:10 AM
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palepony, I know at least one guy that may be interested, I'll have him shoot you a message if he is
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Old Mar 25, 2008 | 07:12 AM
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We used to call them "Lincoln Lockers."

...Lincoln makes welders...
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Old Mar 25, 2008 | 07:48 AM
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Originally Posted by Heath
i googled, searched on here, some other places.... didn't see anyone with a 350z and welded diff.

Maybe 350z owners just generally have a bit more money and always purchase aftermarket? not sure... but I like it welded

you're not the first. AJ's is welded, as well as Blake Fuller.
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Old Mar 25, 2008 | 02:15 PM
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Originally Posted by Heath
also works pretty well for HPDE/Time Attack since it makes heat not an issue and makes your turn in more predictable.

I'll put it to that test soon.

doesn't work well at all actually - great for drift, but as Jeremy noted, it will be slower than a properly setup aftermarket diff unless its a very long track without much turning

would be interesting to see before/after times vs a stock open

Last edited by Z1 Performance; Mar 25, 2008 at 02:22 PM.
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Old Oct 17, 2008 | 09:49 PM
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sorry to bring old thread back, but what trim was ur Z?
and did it throw any codes???
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Old Oct 18, 2008 | 06:50 AM
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Originally Posted by Heath
I did a lot of searching and researching before deciding I wanted to do it...

then last friday I bought an open diff and had it welded and replaced the vlsd.

I thought a few might be interested in the results.

Why did I do it? because was less than $200 and a perfect lock, not relying on mechanics or viscous.

How does it feel when drifting? awesome, kicks out easier, holds a drift easier, is just a whole lot of fun

How does it feel daily driving? absolutely fine, kick it out when I want to, but drive normal when I want to, very predictable cornering

Does it feel weird at all? yes, lol, it chirps on tight turns, gets a bit splashy on a fast tighter corner, but is predictable, you always know what it is going to do

Is it dangerous in driveability? no, I don't feel unsafe ever, I feel like I always know what it is going to do now

Is it fun? yes

Does a welded diff hold or ever break? No. I had a shop called Toy Box Auto do it, they do four wheeling truck diffs that hold thousands of pounds of low geared torque, it will last forever... or as forever as anything can last on a car, ha.
Wow good luck with them. They totally screwed me over on a LSD they were selling. Jerked me around, kept stalling. Apparently they sold something they never even had in hand, then he blamed it on Fed-ex, then DHL, then his part time help.
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Old Oct 18, 2008 | 01:27 PM
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Originally Posted by amg55driver
sorry to bring old thread back, but what trim was ur Z?
and did it throw any codes???
my guess would be a base if he has an open diff...also, why would welding the diff. throw any codes?
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