MFactory LSD Group Buy [Archive] - BMW E46 330 ZHP For Sale Forum

Stigissimo

01-07-2019, 04:53 AM

Hey everybody,

Myself and another member over in e46fanatics (tjas0n) are starting a group buy for MFactory LSD units. As far as I know, group buy price will be $800 for the LSD unit if we can get 10 buyers, of which we have 3 so far.

I heard rumblings that there are some on this forum looking for a group buy, so if you’re looking for some lockey slidey rear end action now’s your shot.

If you’d like to be part of the group buy, please PM me and I will send you tjas0n 's email. Please send him the following info: year, model, transmission type, diff ratio (if you can, especially important if you’re swapping into a different diff than your OE one), and LSD type you’re looking for (metal plate vs helical).

Carry on!

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RUS_ZHP

01-07-2019, 05:01 AM

$799 is an excellent price! I was planning to install LSD on my car. But, I am off the hook since my new touring has LSD installed.
Good luck with the group buy!

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slater

01-07-2019, 08:29 AM

hmmm... might be in for my E90 if they can do that!

cornercarver

01-07-2019, 09:25 AM

Any idea what would be the discount for the full 'pumpkin rebuild' option? I pledged my interest in this thread (http://www.zhpmafia.com/forums/showthread.php?15863-MFactory-Helical-LSD-s-Lifetime-Warranty-30-Day-Money-Back-Guarantee!&p=577640#post577640) where johnrando was recently asking about a group buy.

I'm interested for the $799 price. Maybe I should call MFactory directly to see if they'll allow me to apply the discount to a pumpkin rebuild... I'm thinking it would be cheaper than having my local shop install the LSD at $115/hr.

Stigissimo

01-07-2019, 10:02 AM

cornercarver

01-07-2019, 11:17 AM

Stigissimo

01-07-2019, 11:43 AM

I spoke to David (? I think.) He said he hadn't heard anything about a group buy for a while.

That said, he said he couldn't identify a price for the full pumpkin rebuild; it would depend on the terms of the group buy.

Interesting - member tjas0n over on e46fanatics is doing the reaching out, maybe he's just gathering names and hasn't reached out yet, or perhaps he's dealing with a different person over there?

here's the link to the thread:
https://forum.e46fanatics.com/showthread.php?t=1240619&page=5

I'm also going to modify the original post - PM me if you're interested, and I'll send you tjas0n's email to get in touch directly with him since he's running the group buy.

joeybananaz18

01-07-2019, 12:26 PM

any idea when it will go through? An LSD is on my to-do list but don't know if it's the cards just yet.

Stigissimo

01-07-2019, 12:28 PM

any idea when it will go through? An LSD is on my to-do list but don't know if it's the cards just yet.

I don’t know yet as it depends if we can get enough people. I personally am hoping it goes through sooner rather than later so I can take advantage of an LSD in the winter months

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BADCLOWN

01-07-2019, 04:16 PM

Man I’d love one.......ugh

joeybananaz18

01-07-2019, 04:19 PM

I don’t know yet as it depends if we can get enough people. I personally am hoping it goes through sooner rather than later so I can take advantage of an LSD in the winter months

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Ok I’m subscribed. I’ll keep an eye on it for the same reason. I don’t track my car but I would like to see how it improves winter driving.

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slater

01-07-2019, 04:52 PM

Ok I’m subscribed. I’ll keep an eye on it for the same reason. I don’t track my car but I would like to see how it improves winter driving.

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it makes a huge difference - it's worth it for that alone.

Stigissimo

01-07-2019, 05:01 PM

Man I’d love one.......ugh

Do [emoji1319] it [emoji1319]

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johnrando

01-07-2019, 05:12 PM

Yup, I pinged them quite a while ago to gauge interest but over the holidays I had not followed up for details while I checked on public interest. I am happy to go in on yours, and I can let you know the e46f.c people who said they wanted in. Check my thread on here to make sure you don't miss anyone pls. Thx for doing!

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joeybananaz18

01-07-2019, 06:38 PM

it makes a huge difference - it's worth it for that alone.

Hmmmm might take a whack at it. Need to read up on them first.

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FungShui

01-07-2019, 08:13 PM

Stigissimo

01-08-2019, 04:45 AM

+1 I'm in to lock in the price but I need to source the diff.

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Plenty on eBay; that’s where I plan on getting my 3.38.

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slater

01-08-2019, 05:48 AM

Plenty on eBay; that’s where I plan on getting my 3.38.

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i've got a spare 3.07 and 3.46 here if anyone is needing one; you'd need to swap the flanges from your diff over once completed though (about 20min job).

704sw

01-08-2019, 08:47 AM

i've got a spare 3.07 and 3.46 here if anyone is needing one; you'd need to swap the flanges from your diff over once completed though (about 20min job).

That 20min doesn’t include the input flange, does it? Everything I’ve seen suggests that’s a bitch-and-a-half to.

Stigissimo: is there a closing window/commit-by date?

slater

01-08-2019, 08:49 AM

That 20min doesn’t include the input flange, does it? Everything I’ve seen suggests that’s a bitch-and-a-half to.

yeah, it does - it's not bad at all. i did it on my workbench. you need a 30mm socket, if i remember correctly. the output flanges are 2-3min per side.

Stigissimo

01-08-2019, 08:53 AM

Stigissimo: is there a closing window/commit-by date?

Not yet, but the sooner the better

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cornercarver

01-08-2019, 09:38 AM

i've got a spare 3.07 and 3.46 here if anyone is needing one; you'd need to swap the flanges from your diff over once completed though (about 20min job).
Why are the flanges different?

704sw

01-08-2019, 09:59 AM

Why are the flanges different?

Because BMW hates us.

330 input flanges are different from all the other input flanges. ZHP output flanges are different from all the other E46 output flanges.

Stigissimo

01-08-2019, 10:00 AM

Because BMW hates us.

330 input flanges are different from all the other input flanges. ZHP output flanges are different from all the other E46 output flanges.

BUT the workaround is a 3.38 from an auto ZHP if you’re scared of flange swapping.

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704sw

01-08-2019, 10:11 AM

BUT the workaround is a 3.38 from an auto ZHP if you’re scared of flange swapping.

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I thought auto ZHPs were 3.64, and regular AT330s have a 3.38. On a 3.38 you still have to swap output flanges, just not the input.

Maybe a stupid question, but can you move all the innards from a non-330 into the 330 pumpkin as a workaround for the input flange swap?

Stigissimo

01-08-2019, 10:35 AM

I thought auto ZHPs were 3.64, and regular AT330s have a 3.38. On a 3.38 you still have to swap output flanges, just not the input.

Maybe a stupid question, but can you move all the innards from a non-330 into the 330 pumpkin as a workaround for the input flange swap?

Well I guess I have a flaw in my own plan! I'll have to swap output flanges then - luckily they just pop right over.

As far as swapping "innards," that would be more difficult than swapping the flange. I believe you'd have to swap the pinion in order to change the ratio, which I can only imagine is more involved than just changing the pinion flange. Such a swap would also require you to really know what you're doing when checking (and potentially having to change) preload/backlash post-swap.

704sw

01-08-2019, 11:00 AM

Vas

01-08-2019, 11:14 AM

I know in the past people have sent a full diff to the vendor and they cleaned it, installed the lsd and did a rebuild on it, and shipped it back.

slater

01-08-2019, 11:16 AM

Touché. Really I just need to decide if I want to dump $1k into a track mod for a car I don’t plan on tracking that much longer (I’m never going club race this car, which is ultimately what I want to do).

i never got to the track with the Touring, but i enjoyed the hell out of the LSD. and the 335i, making another 66hp and 90ft-lbs of torque, needs one even worse.... i can spin the summer tires through 2nd gear, the winters through 3rd gear. wheelspin in 3rd gear is a little unnerving.

BADCLOWN

01-08-2019, 11:40 AM

Ah, I thought the 800 included the diff, I didn’t know you had to source a used one/remove your current one in order to have this done

slater

01-08-2019, 11:51 AM

Ah, I thought the 800 included the diff, I didn’t know you had to source a used one/remove your current one in order to have this done

nope. $800 is a deal.

the 2008-2011 335's have welded ring gears, and as such need machining in order to bolt to a LSD carrier. the result is about a ~$2500 price tag. so, yeah - $800? cheap.

BADCLOWN

01-08-2019, 12:13 PM

Looks like e46 ZHP rear diffs go for 175-250 on eBay. I wish that $800 included the donor diff

az3579

01-08-2019, 03:31 PM

nope. $800 is a deal.

the 2008-2011 335's have welded ring gears, and as such need machining in order to bolt to a LSD carrier. the result is about a ~$2500 price tag. so, yeah - $800? cheap.

Yeah, definitely cheap, even at half that price. I think the Diffsonline diff I have in my ZHP cost about $2500+ when it was new...
I'm glad I didn't have to buy it new at full price. :)

joeybananaz18

01-08-2019, 04:51 PM

Ah, I thought the 800 included the diff, I didn’t know you had to source a used one/remove your current one in order to have this done

thank you for answering that. I was about to ask.

joeybananaz18

01-08-2019, 05:03 PM

hey Im sorry for being a noob and a half but i really don't know diffs. if I'm looking on eBay and at partouts, what would be the ideal diff to pick up for this?

Stigissimo

01-08-2019, 05:10 PM

hey Im sorry for being a noob and a half but i really don't know diffs. if I'm looking on eBay and at partouts, what would be the ideal diff to pick up for this?

Depends; what kind of car do you have?

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704sw

01-08-2019, 05:34 PM

hey Im sorry for being a noob and a half but i really don't know diffs. if I'm looking on eBay and at partouts, what would be the ideal diff to pick up for this?

Really it just depends what you’re wanting out of it. Tracking? Backroad twisties? Do you like your current final drive ratio?

joeybananaz18

01-08-2019, 05:57 PM

Really it just depends what you’re wanting out of it. Tracking? Backroad twisties? Do you like your current final drive ratio?

Depends; what kind of car do you have?

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So I've got a 6-speed zhp. I don't plan on tracking the car but i wouldn't rule it out in the future. I do want to own it for a long time and that means having something that will get through winters. I really can't complain about the final drive. I wouldn't really know how i'd want to improve upon it. I always thought 1-4 were great, I don't need 5th, and 6th is great lol.

So i guess what I'm looking for would be winter driving improvements, maybe something that might get used on a track and maybe improved gas mileage? What are some of the other things that people look to get out of an LSD?

az3579

01-08-2019, 06:01 PM

So i guess what I'm looking for would be winter driving improvements, maybe something that might get used on a track and maybe improved gas mileage? What are some of the other things that people look to get out of an LSD?

If you care about gas mileage, I would stick with the 3.07, or maybe bump to a 3.23 for a minor performance bump without losing much (if any) mpg's. Just being an LSD will help with everything else you're looking for.

joeybananaz18

01-08-2019, 06:36 PM

So, am i right that i need to find a 3.07 open diff and ship it to them for the LSD to get put in? What cars would i find one on?

704sw

01-08-2019, 06:47 PM

So, am i right that i need to find a 3.07 open diff and ship it to them for the LSD to get put in? What cars would i find one on?

http://www.bokchoys.com/differential/GearRatios_E46.htm

joeybananaz18

01-08-2019, 06:54 PM

http://www.bokchoys.com/differential/GearRatios_E46.htm

That’s awesome thanks. I don’t know if I’ll jump on this GB. I feel like I have a lot of reading to do first.

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az3579

01-09-2019, 04:24 AM

So, am i right that i need to find a 3.07 open diff and ship it to them for the LSD to get put in? What cars would i find one on?You're pretty local to me... Want mine? It's sitting in my buddy's garage since I swapped for my 3.46 LSD.

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cornercarver

01-09-2019, 09:47 AM

You're pretty local to me... Want mine? It's sitting in my buddy's garage since I swapped for my 3.46 LSD.
I don't know if they're still doing it, but the first post in the other LSD thread by MFactory (here (http://www.zhpmafia.com/forums/showthread.php?15863-MFactory-Helical-LSD-s-Lifetime-Warranty-30-Day-Money-Back-Guarantee!)) said they charge an additional $450 to install the new LSD in a pumpkin they have in stock, then they add a $500 core charge which is refunded when you send them your old pumpkin. This is the route I'm planning to take... I just hope they're still in the $450 range.

704sw

01-09-2019, 10:20 AM

I don't know if they're still doing it, but the first post in the other LSD thread by MFactory (here (http://www.zhpmafia.com/forums/showthread.php?15863-MFactory-Helical-LSD-s-Lifetime-Warranty-30-Day-Money-Back-Guarantee!)) said they charge an additional $450 to install the new LSD in a pumpkin they have in stock, then they add a $500 core charge which is refunded when you send them your old pumpkin. This is the route I'm planning to take... I just hope they're still in the $450 range.

Honestly that’s a good deal. I watched a couple videos and it just seems like a lot of work. Not necessarily difficult, but a solid day’s work. And if you don’t have things like a vise on a workbench you’d have to get creative. Plus they’d presumably double check things like the backlash, etc.

joeybananaz18

01-09-2019, 12:07 PM

anyone have a contact at MFactory? I want to shoot them a few questions.

Sockethead

01-09-2019, 12:07 PM

Backlash, preload etc. is really important and easy to mess up. I’ve seen a melted ring and pinion. Looked like it was made of clay...

cornercarver

01-09-2019, 01:38 PM

Honestly that’s a good deal. I watched a couple videos and it just seems like a lot of work. Not necessarily difficult, but a solid day’s work. And if you don’t have things like a vise on a workbench you’d have to get creative. Plus they’d presumably double check things like the backlash, etc.
Totally - And both Sockethead and Reasoned1 said it's a relatively easy job to swap the whole pumpkin...

704sw

01-09-2019, 01:51 PM

Totally - And both Sockethead and Reasoned1 said it's a relatively easy job to swap the whole pumpkin...

It is. It’s heavy but pretty straightforward...as long as your driveshaft isn’t friggin’ fused to your diff like mine...

grumble grumble stupid Canada

Sockethead

01-09-2019, 01:59 PM

Nothing that a BFH can’t fix :)

704sw

01-09-2019, 02:19 PM

Nothing that a BFH can’t fix :)

You’d think, yet I still broke a prybar trying to separate the two.

slater

01-09-2019, 02:39 PM

It is. It’s heavy but pretty straightforward...as long as your driveshaft isn’t friggin’ fused to your diff like mine...

grumble grumble stupid Canada

hey, i just removed one from the 2005 ZHP parts car i just dismantled, and it came off in 2min.... you just need to know the tricks... :)

1. there are two 'slots' in the flange on the end of the driveshaft, where it meets the diff - spray liberally with PB Blaster and wait 15min

2. grab a chisel and a 5lb sledge

3. insert chisel into one of the slots - hammer in and pry back at the same time; alternate slots

Reasoned1

01-09-2019, 03:35 PM

The one thing to watch out for on the pumpkin is making sure the new one has the right input flange. The output flanges are easy to change (don’t forget the C-clips), but changing the input flange is to be avoided (at least by the uninitiated) as it’s more involved and, I hear, somewhat tricky.

cornercarver

01-09-2019, 03:40 PM

Anyone here try this stuff?
https://www.amazon.com/Kano-Aerokroil-Penetrating-aerosol-AEROKROIL/dp/B000F09CEA/ref=mp_s_a_1_3?ie=UTF8&qid=1547004836&sr=8-3&pi=AC_SX236_SY340_QL65&keywords=kroil+penetrating+oil&dpPl=1&dpID=416kxyRAYML&ref=plSrch#immersive-view_1547077013315

I read somewhere it’s better than PB Blaster.

Sockethead

01-09-2019, 03:59 PM

hey, i just removed one from the 2005 ZHP parts car i just dismantled, and it came off in 2min.... you just need to know the tricks... :)

1. there are two 'slots' in the flange on the end of the driveshaft, where it meets the diff - spray liberally with PB Blaster and wait 15min

2. grab a chisel and a 5lb sledge

3. insert chisel into one of the slots - hammer in and pry back at the same time; alternate slots

I was just about to post the same thing, almost verbatim :)

Sockethead

01-09-2019, 04:12 PM

changing the input flange is to be avoided as it’s more involved and, I hear, somewhat tricky.

There is a crush washer in there like the Ford 9" diff. It needs to be properly preloaded. I think the Ford was 15 inch pounds...

slater

01-09-2019, 04:46 PM

I was just about to post the same thing, almost verbatim :)

LOL. We need to have a beer some day. :)

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Sockethead

01-09-2019, 04:58 PM

LOL. We need to have a beer some day. :)

:cheers

Stigissimo

01-09-2019, 05:05 PM

SO

Who’s getting a frikken diff?? [emoji16]

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cornercarver

01-09-2019, 05:48 PM

I am!

Don’t we have enough people yet, between here and E46F?

johnrando

01-09-2019, 08:51 PM

Me!

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Stigissimo

01-09-2019, 09:19 PM

I am!

Don’t we have enough people yet, between here and E46F?
I’m not sure yet. I’ll get in touch with tjas0n over on e46f.

Me!

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Have you let tjas0n over on e46f know? If not PM me and I’ll send you his email so you can send him your car info.

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cornercarver

01-10-2019, 05:32 AM

I’m not sure yet. I’ll get in touch with tjas0n over on e46f.

Have you let tjas0n over on e46f know? If not PM me and I’ll send you his email so you can send him your car info.
Yup... I emailed him and he responded Monday. Also posted in the e46f thread... No word since then. Must not have enough people yet.

704sw

01-10-2019, 07:05 AM

As much as I want in, I need to do the responsible thing and pass this time. 2019 is going to be expensive for the house :(

joeybananaz18

01-10-2019, 07:46 AM

As much as I want in, I need to do the responsible thing and pass this time. 2019 is going to be expensive for the house :(

i think we're in the same boat.

704sw

01-10-2019, 08:20 AM

i think we're in the same boat.

Lol you buying new kitchen counters too?

joeybananaz18

01-10-2019, 10:26 AM

Lol you buying new kitchen counters too?

actually..... yes lol. kitchen reno is slated for june.

SteveDoubleU

01-10-2019, 04:56 PM

Im in. When is this going down?

cornercarver

01-10-2019, 06:57 PM

So that’s what- 4 Mafia members now? Plus how many on e46f? I thought tjas0n said he had 3... Is 10 the magic number?

Stigissimo

01-11-2019, 09:41 AM

So that’s what- 4 Mafia members now? Plus how many on e46f? I thought tjas0n said he had 3... Is 10 the magic number?

I just shot him a PM. I think it must be around 7 by now. Finger's crossed!

Stigissimo

01-11-2019, 11:12 AM

TJas0n over on E46f will be doing a tally tonight and getting back in touch with MFactory.

ALL: I've PM'd all who were interested tjas0n's email - if you haven't gotten in touch with him yet, please emailhim your:
- Model
- Year
- Transmission
- Final Drive Ratio (if you know or are changing ratios)
- Type of LSD desired (helical or metal plate)

If you are interested in the group buy and haven't heard from me, shoot me a PM.

cornercarver

01-23-2019, 09:42 AM

Any word on status? There hasn't been any news in the E46F thread. I also PM'd tjas0n to inquire....No response.

Seems like there are enough people; I think we had 3-4 here and another (?) 4 on E46F... Not sure if there's some overlap though. :dunno

johnrando

01-23-2019, 08:47 PM

I am still waiting too. Last I heard was I think last week when he said they were checking inventory.

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Stigissimo

01-24-2019, 12:34 PM

Hey guys -

I messaged tJas0n 2-3 days ago asking for an update - I haven't heard back yet. The most recent update was on 1/14/19: "Mfactory is checking stock, and we currently have 8 people in the group buy."

I actually will be dropping out of the group buy (I've decided I'm going to pursue another project this spring * cough S54), BUT I am still keeping track of progress/updating as best I can as I feel I have a responsibility to you all since I started this thread. Apologies if the process is frustrating; I have just about as much information as you guys do. If there's anything I can do better let me know.

johnrando

01-24-2019, 06:02 PM

Thx for heads up. GL on your other project.

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Stigissimo

01-29-2019, 08:07 AM

Hi Guys -

just heard back. There are 10 buyers needed for the group buy - tJas0n says we currently have 8.

Pony up if you want an LSD!

cornercarver

01-29-2019, 06:34 PM

His last post on E46F said we have 7, and that we need 12 in case someone backs out... Four months ago they only needed 5 people. I feel like we’re getting jerked around by MFactory. :rolleyes Starting to lose interest...