4.10 gears good or bad idea

[breakparts]

I Had 4:10's With Pretty Stock Motor...once I Got All Bolt Ons It Broke My Limited Slip...then Put An Eaton...then The Gears Broke..so I Went To 3:73's..i Like Them And They Havent Broke Yet...4:10's In The 7.5 Inch 10 Bold Will Break If You Have Power And Dr's..with Stock Tires It Will Spin Like Hell...and More Wheel Hop Will Break Them Also...if You Dont Have A Cam You Will Feel Slower In Third And Fourth...just No Powerband..but When I Get A 12 Bolt It Will Have 4:10's For The Off The Line Punch..and A Big Cam Would Be Perfect.....but If You Have A Mild Cam.3:73's Are Gravy.

[drhoades3862]

No one brand is better than the other. Just make sure they replace all the bearings and seals. Don't want any unnecessary noise. And make sure it is a reputable place that installs them.

richmond gears are junk i put a set of 4.10's in my trans am and we have pulled the gears out and installed them 10-15 times and they won't stop whining and making terrible noise. We called richmond and the guy told us that was normal and it won't go away because they don't match there gear sets. He told us that alls you can do is set it right and thats the wayits gunna be. Soi recomend not going with richmond. Go with motive or strange if your gunna buy gears.

[unnatural aspirations]

reallt though WHICH GEARS ARE STORONEST OVERALL?????? BROKE THE 373 RICHMONDS LAST WEEKEND...I NEED A T/A COVER SOLID SPACER,WELDED AXLE TUBES, I PAY TO FAT OF A CAR PAYMENT TO SAVE FOR A 12 BOLT....BUT IF THE 10 BOLT WOULD JUST LAST 6 MONTHS

[Marc 85Z28]

Go with a 4.11:1 ratio if at all possible if you're worried about strength. The 4.11 is substantially stronger than the 4.10.

[unnatural aspirations]

hw the hell is a 411 stronger than a 410..please explain

[Marc 85Z28]

hw the hell is a 411 stronger than a 410..please explain

4.10s have a 10:41 tooth ratio.

4.11s have a 9:37 tooth ratio.

Different tooth count creates a different size tooth, and in this case, the teeth on both the pinion and ring gears are larger. I don't have a pic, but if you saw a 4.10 gearset and a 4.11 gearset side by side it would be quite obvious.

[Hurley711]

4.10s have a 10:41 tooth ratio.

4.11s have a 9:37 tooth ratio.

Different tooth count creates a different size tooth, and in this case, the teeth on both the pinion and ring gears are larger. I don't have a pic, but if you saw a 4.10 gearset and a 4.11 gearset side by side it would be quite obvious.

Who makes 4.11s?

[TK THE TRUCKER]

My 4:10s have quite a whine to them, I forget what brand they are right now. I'm also having trouble running down the track with them. I have a manual 6 speed and I'm running about 12.8 seconds but when I get towards the end of the track I REALLY need to shift into 5th but by the time I would finish the shift and get back on it I would be crossing the line so I would lose alot by shifting. I have been taking it way into the redline, right at the limiter. So I'm in this jam where if I put out anymore power I'm gonna have to shift into 5th or back off a little and stay in 4th but I really, really don't like hitting the limit. I don't know what the hell to do??????

[Hurley711]

I think I gots too much power to run 4.10s in my stock 10 bolt......390+ hp & tq prol not gonna hold up for long in the 10 bolt huh?

[Marc 85Z28]

Who makes 4.11s?

Motive does, but it's confusing. They only list in their catalog a 4.10 gear, not a 4.11. However I've seen several sets that were ordered at 4.10s, and stamped as 4.10s, but counting the teeth reveals a 4.11 gearset. Even stranger, a coworker of mine just bought some Motive 4.10s for his car, and they were in fact 4.10s... Might want to give Motive a call and find out what is what.

Additionally, my 88 S10 has a factory GM Motive gearset. It is a 4.11, stamped as a 4.10.

And to anyone who says a 10 bolt can't take power: I'm making over 400rwhp NA and spraying a 150 shot on top of that at 3700lb raceweight - several 1.6x 60' passes without any problems.

[WinSomeLoseNone]

My 4:10s have quite a whine to them, I forget what brand they are right now. I'm also having trouble running down the track with them. I have a manual 6 speed and I'm running about 12.8 seconds but when I get towards the end of the track I REALLY need to shift into 5th but by the time I would finish the shift and get back on it I would be crossing the line so I would lose alot by shifting. I have been taking it way into the redline, right at the limiter. So I'm in this jam where if I put out anymore power I'm gonna have to shift into 5th or back off a little and stay in 4th but I really, really don't like hitting the limit. I don't know what the hell to do??????

To solve this problem you need to get a taller tire. A larger diameter tire will lower the rpm's through the trap. Usually a car with 4.11's will need a 28 inch tall tire in order to finish the 1/4 in 4th.

[Labukas19]

not to hijack your thread but im in the same dilema 4.10s or 3.73's. i dont just want to roast the tires with 4.10s and afraid for my rear and trans. but im afraid im going to regret getting 3.73's. can you notice a big diff. with 3.42's going to 3.73's? in an M6 car?
(sorry if i hijacked! )

[Hurley711]

not to hijack your thread but im in the same dilema 4.10s or 3.73's. i dont just want to roast the tires with 4.10s and afraid for my rear and trans. but im afraid im going to regret getting 3.73's. can you notice a big diff. with 3.42's going to 3.73's? in an M6 car?
(sorry if i hijacked! )

Most say "No"

[breakparts]

390 rwhp is not too much for 410's in 10 bolt....it will drive ......till you put her at WOT..ITS DANM FUN WHILE IT LASTS THO

[98Camarod]

65 @ 2300 A4.....Shoulda got 3.73s

[Spaz]

My 4:10s have quite a whine to them, I forget what brand they are right now. I'm also having trouble running down the track with them. I have a manual 6 speed and I'm running about 12.8 seconds but when I get towards the end of the track I REALLY need to shift into 5th but by the time I would finish the shift and get back on it I would be crossing the line so I would lose alot by shifting. I have been taking it way into the redline, right at the limiter. So I'm in this jam where if I put out anymore power I'm gonna have to shift into 5th or back off a little and stay in 4th but I really, really don't like hitting the limit. I don't know what the hell to do??????

taller tires...

[85usmcsnyper41]

i was told by a mechanic that a bearing is going in my rear so i was thinking if i'm going to get that replaced i should just do 4.10 gears now instead of in the future. my car is a 6 speed but i am nervous i won't get any traction with street tires and if i use slicks i'll blow the rear. What do you guys think.

Thanks Frank

well let me think, get em now!!! Yeah diff a great idea to go with them. Won't have a problem if you got sticky icky tires in the rear, as long as the motor is near stock conditions