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Engine & Performance
Everything to make your car faster! Air intakes, superchargers, turbos, flywheel & clutch, differentials, chips, short shift kits, exhausts, etc.....

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Old 04-05-2012, 06:26 PM   #1
2006BMWM3ZCP
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FS- SWAP MY 4.10 Diff for your Stock Differential

selling car.

Anyhow, i am looking for someone who is preferably local to the bay area (within 100 miles) of San Jose, CA who is interested in going to 4.10 gears. I purchased a ring and pinion and had Dick @ dynospot racing build this diff for me. cost was $2k. the 4.10 has about 20k miles on it.

This is hands down the best performance modification I have done to my E46M3. Car pulls hard in every gear.


to purchase a 4.10 diff would cost you around $2200~ including sending your stock diff back for a refund of the core charge + whatever your shop charges you. I am asking $1400 OBO for this.


This would consist basically of us swapping differentials. You would also pay me cash on top for my 4.10. You would also be responsible for the labor charge to a shop. A shop should charge around 200-300 per car for this swap. I am willing to drive 50 or so miles from West San Jose, CA to make this happen if we can agree on a price.

If you are a DIY guru and can do the entire swap on your own, and have done diff installs before, i can meet you at your residence to have this done. serious buyers PM me with best offer.

you can also contact me on my cell 408-568-7684.

thanks.

-Will
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Old 04-05-2012, 11:50 PM   #2
LilFlip#2
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Tempting.

Let me know if you have a ib front bumper for sale
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Old 04-05-2012, 11:58 PM   #3
RebL
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+1

Really tempting..
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Old 04-06-2012, 02:38 AM   #4
2006BMWM3ZCP
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first one takes it. cash only. i will be selling the car by summer and its definite. already in the market for a new car. so this has to go. dick at dynospot can vouch for the build.
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Old 04-09-2012, 10:38 PM   #5
2006BMWM3ZCP
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bump. i am willing to ship this, however, you would need to ship me your diff which is fully built, as well as pay for my shipping costs to send this to you and $300 to cover the cost of installing your diff and removing mine...
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Old 04-09-2012, 11:00 PM   #6
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hefty price right there. but I'm sure its worth it.. and its not hard to find someone to do labor for cheap. glws. the new owner is going to be a happy camper
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Old 04-09-2012, 11:50 PM   #7
11adrian86
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I'm interested , wish you a little closer....Long beach CA

Sent from my SPH-D700 using Bimmer App
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Old 04-10-2012, 02:54 PM   #8
2006BMWM3ZCP
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okay. so i have gotten a ton of text requests about this. so i am opening this up to non bay area owners.

here is how the procedure would work.

if you want to purchase the diff and you need me to ship. this is what we can do.

1.you will send me your diff (fully built). then paypal + 1400 for the 4.10s. + shipping (which would be however much it was to ship your diff to me). You would also be paying me $300 to have a shop remove my 4.10 and put in your stock diff. i was quoted 500 for this but i think i may be able to get it for a little less, if not ill pay the difference.

after my 4.10 is removed, i will send it to you.

i have bought and sold many things here and am not trying to scam anyone. i will give full telephone# and address to the buyer and would like to speak with you on the phone to do the deal. i will even make the last part, cash on delivery. meaning if you feel more comfortable... ill take 1400+ shipping upfront and i will mail the diff cash on delivery for the last 300. of course as a buyer you would be responsible for any COD fees.
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Old 04-10-2012, 04:00 PM   #9
ImperialduckM3
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$1850 vs $2k= a saving of $150 for a 20k mileage unit.. Is the price negotiable?
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Old 04-10-2012, 04:22 PM   #10
M-bird
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Quote:
Originally Posted by 2006BMWM3ZCP View Post
okay. so i have gotten a ton of text requests about this. so i am opening this up to non bay area owners.

here is how the procedure would work.

if you want to purchase the diff and you need me to ship. this is what we can do.

1.you will send me your diff (fully built). then paypal + 1400 for the 4.10s. + shipping (which would be however much it was to ship your diff to me). You would also be paying me $300 to have a shop remove my 4.10 and put in your stock diff. i was quoted 500 for this but i think i may be able to get it for a little less, if not ill pay the difference.

after my 4.10 is removed, i will send it to you.

i have bought and sold many things here and am not trying to scam anyone. i will give full telephone# and address to the buyer and would like to speak with you on the phone to do the deal. i will even make the last part, cash on delivery. meaning if you feel more comfortable... ill take 1400+ shipping upfront and i will mail the diff cash on delivery for the last 300. of course as a buyer you would be responsible for any COD fees.
umm, swapping a diff out takes all of about an hour and a half on your back in the driveway. What is the lockup percentage, ramp angles, and has the R/P been REM Isotropic finished?

Last edited by M-bird; 04-10-2012 at 04:27 PM.
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Old 04-10-2012, 07:41 PM   #11
2006BMWM3ZCP
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if you can do it in an hour and a half, more power to you. i cannot and will not attempt to do this since i am not that savvy with fixing cars. shops here in CA charge about 120/hr for labor, and ive called 3 shops all quoted me at least 400. diff lock is 40 pct. not sure about the other aspects of your specs.
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Old 04-10-2012, 07:43 PM   #12
2006BMWM3ZCP
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Originally Posted by ImperialduckM3 View Post
$1850 vs $2k= a saving of $150 for a 20k mileage unit.. Is the price negotiable?


it would cost you more than 2k. i believe diffsonline pricing is 2499.

the cheapest ive ever seen is 2200. and that would be a savings of 350.

but lets get down to logistics.

i will take 1700 + the price of you shipping your diff.

not sure how much that would cost but the 1700 would include on my end the purchase price of the diff, the labor i need to swap in/out, and me shipping you the 4.10.
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Old 04-13-2012, 01:07 AM   #13
2006BMWM3ZCP
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bump. if you are a serious buyer, make an offer.
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Old 04-13-2012, 11:02 AM   #14
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GLWS!

Buyers do your research, you can get all of this brand new and installed for under $1000.
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Old 04-13-2012, 03:26 PM   #15
2006BMWM3ZCP
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Originally Posted by RebL View Post
GLWS!

Buyers do your research, you can get all of this brand new and installed for under $1000.
thank you for crapping on my thread.

you cannot get this new for under 1000.

for the record, i have my record of PMs with this member and the cheapest i did the math was $1808 brand new not including tax+shipping.
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Old 04-13-2012, 04:06 PM   #16
RebL
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Originally Posted by 2006BMWM3ZCP View Post
thank you for crapping on my thread.

you cannot get this new for under 1000.

for the record, i have my record of PMs with this member and the cheapest i did the math was $1808 brand new not including tax+shipping.
Umm yeah you can, even cheaper if you know the right people.

I don't see why your mad dude, just looking out for other forum members. Honestly good luck with the sale.

Now here is how to get everything done for under $1000.

BMW Motorsport gears: $804

Straight from Rahal BMW 742-746-2600.

$530 for the 3.91 (Part #33.12.7.768.525)
$804 for the new edition 4.10 (Part #33.10.8.321.899)

Installing R&P: $85

http://www.progearaxles.com/
http://www.m3forum.net/m3forum/showt...=395732&page=9

Labor: $0

Man up, get your hands dirty.

Fluid: $30 ($15 a quart)

Amsoil 75w140 Severe gear diff. lube.

GLWS
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Old 04-13-2012, 06:03 PM   #17
spitvenom
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My friend has been trying to go 4.10 for a while, he was going to call this guy and give him the 1700 plus ship his diff.

Thanks, rebl, ill pass this info forward.
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Old 04-13-2012, 06:03 PM   #18
spitvenom
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LMAO at "GLWS" at the end hahhahah
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Old 04-14-2012, 12:42 AM   #19
2006BMWM3ZCP
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Quote:
Originally Posted by RebL View Post
Umm yeah you can, even cheaper if you know the right people.

I don't see why your mad dude, just looking out for other forum members. Honestly good luck with the sale.

Now here is how to get everything done for under $1000.

BMW Motorsport gears: $804

Straight from Rahal BMW 742-746-2600.

$530 for the 3.91 (Part #33.12.7.768.525)
$804 for the new edition 4.10 (Part #33.10.8.321.899)

Installing R&P: $85

http://www.progearaxles.com/
http://www.m3forum.net/m3forum/showt...=395732&page=9

Labor: $0

Man up, get your hands dirty.

Fluid: $30 ($15 a quart)

Amsoil 75w140 Severe gear diff. lube.

GLWS

you forgot that you have to buy shims and crush seals... if you want to do it yourself thats fine, but to fabricate a diff from just a ring/pinion, will take you 6-10 hours of labor.

because theres no way in heck you are buying a 4.10 fully built diff for $804.

sorry.
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Old 04-14-2012, 12:45 AM   #20
2006BMWM3ZCP
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Originally Posted by spitvenom View Post
My friend has been trying to go 4.10 for a while, he was going to call this guy and give him the 1700 plus ship his diff.

Thanks, rebl, ill pass this info forward.
your friend last time i checked was going to get quotes on installing a diff. make sure if hes buying the parts from rahal at BMW that he clarifies that he has only the ring and pinion.. the charge for building a diff from a ring/pinion is about $1000+ including other parts

the charge for swapping in a fully built diff, is probably somewhere around 300.


and lets just say that this is not something you wanna do buy yourself unless you know what youre doing.
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