How well will 4.10's hold up in my car.

[socmninja]

I'd like to know how many M6 drivers out there have swapped in 4.10's and how long you've had them? How well do they put up with hard launches? Who's destroyed a rear with them? What brand make the strongest and quietest set?

[Zboner]

those gears and a 7.5 rear and a hard launch, it wont last long at all

[Zboner]

quietest set is prolly GM

[SLP00blueSS]

I have 4.10's for a little over two years....launching is difficult I'am putting LCA's and relocation brackets on this weekend will let you know how it is. I love the gears though still get over 35 mpg on the e-way! mine make noise sometimes is kind of annoying but get used to it.

[Y2KPewterSS]

those gears and a 7.5 rear and a hard launch, it wont last long at all

:werd:

[socmninja]

damn, who else has had theirs for a while?

[Spaz]

:nilly: quietness is all about the install...

4:10's will hold up for a while as long as they are installed right... also it depends on your current mods....if you're going to put in 4:10's replace your possi unit unless it has low miles and also your bearings...

[camarojunky74]

lol and i got an auburn series 3 carrier with bran new bearings :)

[camarojunky74]

for sale i mean:sillyme:

[Wesman]

I have 4.10's in my M6 car and they've been fine. They are relatively quiet too.

I don't understand why everyone says 4.10's are so much weaker than 3.42's. The ring gear is bigger, which should put less stress on the pinion gear, since its easier to turn a larger ring gear than a smaller one.

[socmninja]

That's what I've always wondered!!! Is it just the GM housing that can't support the torque? How many hard lauches at the track have you had Wesman? Also, do you need the install kit's they make? I won't be doing the install, how much is the going rate? Also, do those diff covers/ girdles make *any* difference? Is it just cheap insurance?

[Spaz]

I have 4.10's in my M6 car and they've been fine. They are relatively quiet too.

I don't understand why everyone says 4.10's are so much weaker than 3.42's. The ring gear is bigger, which should put less stress on the pinion gear, since its easier to turn a larger ring gear than a smaller one.

teeth are smaller...

[Raoul-Duke]

I'd like to know how many M6 drivers out there have swapped in 4.10's and how long you've had them? How well do they put up with hard launches? Who's destroyed a rear with them? What brand make the strongest and quietest set?

ohh you wont destroy your rear with 4.10's with street tires...just dont plan on having 1st or sec gear anymore or racing anybody under 40mph,lol....get some dr's and one launch above 4k and you'll be 2.5k in the hole for a new rear

[Wesman]

teeth are smaller...

So even with the ring gear being larger in diameter, the teeth are still smaller?? Interesting, that explains it I guess.

[Wesman]

That's what I've always wondered!!! Is it just the GM housing that can't support the torque? How many hard lauches at the track have you had Wesman?

Lots of hard street driving and 2 launches at the track. Both times I launched between 2000 and 2500RPM, with 285/40/17 tires.

Also, do you need the install kit's they make? I won't be doing the install, how much is the going rate?

Probably $200-$300 at a shop.

lso, do those diff covers/ girdles make *any* difference? Is it just cheap insurance?

They help somewhat, because they apply pressure to the bearing caps to keep them from deflecting under stress. However, it still doesn't make the rear bulletproof by any means. Definitely helps though.

[beanie]

Had mine for about 2 years but only have about 2 or 3 thousand miles on em (garage queen). very rarely hear any gear noise and the change in non-hwy driving was excellent. i recommend it

[cobrahunter]

Have had my 4.10s on for almost 2 years. And let me tell you, I've never dropped the clutch above 1500k rpm; still have the stock rear end. Now from a roll, that's a different story...

[socmninja]

I have an Lid, LS6 intake and full exhaust w/ LT's. most all bolt ons, no cam. Will I be alright w/ 4.10's and Nitto 555's?

[T/Aboo]

I've had mine for 5 years and the only issue after 35K miles is a little more gear noise than the stock 3.42's. I drive the car daily; most of the time like a normal person, but hard everytime a Mustang is involved. I have lower control arms, panhard, torque arm, etc. w/ BFG G-Force tires, so the car plants pretty good, which in turn means there really is no need to get into the 2500 or 3000 rpm launch range. The car leaves so much better with 4.10's you don't really have to rev high to make your point. I kinda like it when someone gets that fender length on the launch and then you drive past them like they were in reverse!!

[Proud2bSS]

Mine will be 5 years installed next month. 24k miles on them. I pulled the rear to clean and paint it and looked at the gears. They were like new.

I absolutely love the quickness from the 4.10's, and the pulling they give me on the street.

[cobrahunter]

Ok, I've been monitoring some of these rear-end threads for a while and I haven't found an exact answer to my question, so here goes...I still have the stock rear on my car. I'm pushing about 360hp to the wheels (I also have 4.10s), but that will change when I put a new cam in. What exactly is it that wil cause the rear-end to fail (break) on me? I've heard before that owners even with stock set-up have had their rear ends go out on them.

[cobrahunter]

Oh, also, my car is my daily driver, so I don't push it like I probably would if I had another car.

[camarojunky74]

it depends a lot on if your a4 or 6 speed, but i would say that if its still a torsen style carrier either the worm gears would fail or you would stip off all the teeth on the gears under a hard launch or acceleration, because you have 4.10s, just make sure you arent doing donuts or excessive tire spinning unless you want to destroy your driveline, donuts being the most harmfull to your rearend especially being a lsd style.

my buddys car has a cam and 4.10s with stock rear and he has a 6 speed, his car was absolutely fine until he thru on some mt's and after that he stripped off all the teeth but luckily the carrier was still okay.

[02blkws6]

Stalled A4, 10 bolt with 4.11 gears. 37 tooth ring 9 tooth pinion is stronger than the 41 tooth ring and 10 tooth pinion.

My best 60' so far is a 1.62 rolling off the line and punching it. When the ET Street radials are done I'll be putting slicks on it. We'll find out how quick the 10 bolt can go soon enough.

[9t8z28]

it depends a lot on if your a4 or 6 speed, but i would say that if its still a torsen style carrier either the worm gears would fail or you would stip off all the teeth on the gears under a hard launch or acceleration, because you have 4.10s, just make sure you arent doing donuts or excessive tire spinning unless you want to destroy your driveline, donuts being the most harmfull to your rearend especially being a lsd style.

my buddys car has a cam and 4.10s with stock rear and he has a 6 speed, his car was absolutely fine until he thru on some mt's and after that he stripped off all the teeth but luckily the carrier was still okay.

Well lets see! I have over 150,000 miles on my Torsen w/
4:10s! They are stronger than you think! I beat the shit outta my car everyday!

[davered00ss]

430rwhp, M6 71K and no problems. I drive my car like I fucking stole it.

[cobrahunter]

Got it! I stay away from trying donuts. That little bit of FYI I'm good at following.:cheers:

[camarojunky74]

Well lets see! I have over 150,000 miles on my Torsen w/
4:10s! They are stronger than you think! I beat the shit outta my car everyday!

i didnt say anything about "your car is gonna break" i just simply gave my opinion that if and when it breaks you can count on those two thnings being the problem.:blowme:

[9t8z28]

i didnt say anything about "your car is gonna break" i just simply gave my opinion that if and when it breaks you can count on those two thnings being the problem.:blowme:


No, you said the Torsen was basically junk "nOoB". Once again, I have the same setup! I smoke the tires off, launch hard and do dougnuts on a weekly basis!
NoOb!

[camarojunky74]

No, you said the Torsen was basically junk "nOoB". Once again, I have the same setup! I smoke the tires off, launch hard and do dougnuts on a weekly basis!
NoOb!

okay, if would have read the post carefully or maybe you did and your just retarded, i never said that the torsen "was junk" i was just giving him the most probable things that would fail in such an occurance.

also the torsen is the less superior in strenght style of carrier, obviously when slp offered a aubrun clutch style carrier it wasnt for looks or to say that you have an auburn their are advanages to having an auburn over a torsen, strength and better and more equal power transfer from wheel to wheel also.

and secondly just because i have less posts than most or just joined this forum does not make me a "NOOB"
besides having enough ASE's to make me a master tech, two ASE's are in driveline one being auto trans and the other being manual and differentials.
and being an auto technician is how i make a living,

third i have owned and worked on more cars than just my two camaros, my dads camaros buddys cars. customers cars... so:moon: suck it

[9t8z28]

:hide:

[9t8z28]

:worship:

[Jays00ss]

I have motive performance 3.90's in my car and absolutely love them. I have a little more of a 1st gear. My buddy who used to work at a rear end shop put them in for me with the torque arm and subframe connectors for $150 bucks great deal!!! They are quiet as hell and I really dont hear anything because I am running LTs and an ory!!!
3.90s might be a good alternative for you. :nana:

[LS1Formula01]

I have had 4.10s in my car now for about a year and have probably put about 20k miles on them. No problems what so ever. However. I am getting rid of my Torsen lsd and putting in an Eaton locking posi (clutch style). Drag racing buddy of mine who has been in the sport for longer than i have lived ran the eaton locking posi in a 91 s10 that he threw a 396ci in with a 7.5 thats right a stock 7.5 rear end with a 4.10 gear and ran 11s time after time after time with it. he said it even felt stronger after putting in that diff.

[HasselZ28]

Whats everyopnes opinion on putting 4.10 gears in a A4 ?

[cobrahunter]

If it's a DD, 4.10s on an automatic will increase your fuel consumption more than it would on an M6, and the rpms will run higher. If you're okay with that...go for it.:cheers:

[camarojunky74]

i just put my 4.10's in two days ago, since putting them in i already went to the 1/8 mile track yesterday, well all i can say is drag radials is my next thing and with my car burning out i managed a 1.9 60 foot on street tires and a 8.4 time like i said spinning quite a bit. but having the 4.10's took 2 tenths off my time, but with my buddy bringing me his drag radiaals on saturday and me going to the 1/4 mile track in fontana i am hoping for better!

all in all freewaay isnt that bad im at 3k at 80. but the car is so much faster, it pulls a lot alot harder even from a rolling 80 it pulls better

[cobrahunter]

I hear you. Going from 3.42s to 4.10sthe gain was phenomenal. :zoom:And with my M6, I'm doing 75 at about 1900 RPM.

[Roastem]

Hmmm...Moser and Strange are backordered from F-body owners buying rear ends, yet nobody here seems to have any problems? They usually don't sell 12-bolts to people with perfect 10-bolts.

I dumped a shit-ton of money into my 10 bolt, and guess what, it is sitting behind my house after the diff crapped two huge bolts into my housing and busted it. Over and over. And fucked up practically new set of 400+ dollar 4.10's. Damn, I thought my friggin driveshaft was scrubbing the highway it was making such a ruckus.

That was my SECOND set of 4.10's.

Needless to say, she has a new 12-bolt in her pussy, and I should be finishing the install tomorrow. Moral of the story, a rear that cost 2500 ended up costing 4000 by not getting the 12-bolt when I should have.

Who knows, you might be able to get away with it. Go for it, but be warned... :goodluck:

[KM02SS]

I've had Motive 4.10's in for about 10 months, I don't take it to the track though. Mine are a little noisy @ 50mph but I think the installer may have not set it up right but he did say Motives can be noisy. I really like the way the car pulls so I'm not complaining.

[rc74racer]

Stalled A4, 10 bolt with 4.11 gears. 37 tooth ring 9 tooth pinion is stronger than the 41 tooth ring and 10 tooth pinion.

My best 60' so far is a 1.62 rolling off the line and punching it. When the ET Street radials are done I'll be putting slicks on it. We'll find out how quick the 10 bolt can go soon enough.

The slicks will most likely mean the end to your 10 bolt. I have no first hand experienced by I was warned by several people including my mechanic that if I launched hard or ran slicks that would be the end of my 10 bolt. I do have an M6 though but I imagine with your stall and 4.11s the slicks will be very hard on your 10 bolt.

[camarojunky74]

The slicks will most likely mean the end to your 10 bolt. I have no first hand experienced by I was warned by several people including my mechanic that if I launched hard or ran slicks that would be the end of my 10 bolt. I do have an M6 though but I imagine with your stall and 4.11s the slicks will be very hard on your 10 bolt.

+1 on that!

[chad2001ls1]

not long i had a friend and she put 4.10's in it three days ago did 4 lanches at 4500 at the track and broke a axle and sheered a piece of the axle in the carrier

[camarojunky74]

nice good work! is she gonna put a 12 bolt in now? or rebuild her 10bolt and just not run 4.10's?