4.10 Gear Question
Thread Starter
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Joined: Jul 2003
Posts: 54
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From: Louisiana
4.10 Gear Question
I'm not too familiar with any sort of driveline modifications and i was
wondering about the 4.10 gears. I know they are supposed to be a great
mod, but how much of a gas mileage change would I expect to see when I
travel 60 miles a day at about 80 mph and get about 20-22 mpg. Also, would
this put more strain on the engine since it would be at a higher RPM
constantly? And would it be possible to install the 4.10 gears and the new
speedometer gears yourself, since I like doing the car work myself and try to
avoid shops at all costs.
Thanks in advance
[Modified by LaTechEE, 12:31 PM 8/21/2003]
wondering about the 4.10 gears. I know they are supposed to be a great
mod, but how much of a gas mileage change would I expect to see when I
travel 60 miles a day at about 80 mph and get about 20-22 mpg. Also, would
this put more strain on the engine since it would be at a higher RPM
constantly? And would it be possible to install the 4.10 gears and the new
speedometer gears yourself, since I like doing the car work myself and try to
avoid shops at all costs.
Thanks in advance
[Modified by LaTechEE, 12:31 PM 8/21/2003]
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: 4.10 Gear Question (LaTechEE)
1) it will kill gas mileage...
2) not a DYI project... unless you have tools and have done it, and judging from your comment, you have not, so no. Don't do it.
3) I would not go to 4.10s for a daily driver... maybe 3.73's, but not 4.10's. I remember driving my brother's 67 BB with 4.10s... DAMN... 3000 rpm at 60 mph. Sure was fast, but gee... tiring.
2) not a DYI project... unless you have tools and have done it, and judging from your comment, you have not, so no. Don't do it.
3) I would not go to 4.10s for a daily driver... maybe 3.73's, but not 4.10's. I remember driving my brother's 67 BB with 4.10s... DAMN... 3000 rpm at 60 mph. Sure was fast, but gee... tiring.
Melting Slicks
Joined: Apr 2001
Posts: 2,877
Likes: 7
Re: 4.10 Gear Question (bogus)
If you have a 6spd you will notice harldy any loss in the mileage you get out of them.. unless of course you hotrod around a little more, which you will cause the gears make it a lot more fun to drive.. My car with 4.10's and 6spd runs at about 1800 rpm @ 70mph. Not bad at all
as for doing it your self-- i pulled the rear on my car my self and then brought the d44 to a shop to have my gears installed.. about 250 for them to set them up and I haven't had any problems since
I say go for it
[Modified by Ruby6spd, 2:31 PM 8/21/2003]
as for doing it your self-- i pulled the rear on my car my self and then brought the d44 to a shop to have my gears installed.. about 250 for them to set them up and I haven't had any problems since
I say go for it
[Modified by Ruby6spd, 2:31 PM 8/21/2003]
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
Re: 4.10 Gear Question (bogus)
1) it will kill gas mileage...
I would NOT attempt to set the gears up if you've never done it before. If you do the setup wrong, the gears will be noisy and may wear quickly.
4.10s work fine in a daily driver. Just shift to 5th or 6th sooner.
Race Director
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
Re: 4.10 Gear Question (LaTechEE)
4.10's and a 355rwhp engine, and I'm still getting 25 mpg on the highway. Get the gears, you won't believe the improvement. They actually make 6th gear usable.
Racer
Joined: Apr 2003
Posts: 296
Likes: 0
From: Houston Texas
Re: 4.10 Gear Question (LaTechEE)
Go for it. It has been said before, and I have to agree, that 4.11 should have come stock with a six speed. The MPG difference is not enough to worry about, and the performance gains are supposed to be great. The rear must be set up professionally, but you can pull it out yourself. There is a tech tip that covers Dana 36 to Dana 44 conversion with all the details you need on pulling out your Dana 44. Just watch that leaf spring. :D
Thread Starter
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Joined: Jul 2003
Posts: 54
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From: Louisiana
Re: 4.10 Gear Question (speedracer1996)
Thanks for all the input. Me and my dad have replaced clutches and pretty much everything else in cars except gear work. And I think I might would rather have a shop do gear work instead of me doing it myself and having something go wrong and being SOL. I'll have to keep checking around before I undertake this but thanks for all the help.
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Melting Slicks
Joined: Jan 2000
Posts: 3,418
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From: NW Chicago Suburbs
Re: 4.10 Gear Question (LaTechEE)
...rather have a shop do gear work instead of me doing it myself and having something go wrong and being SOL....
Eric
Safety Car
Joined: May 2003
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From: Houston Texas
Advanced
Joined: Jun 2003
Posts: 63
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From: san antonio tx
Re: 4.10 Gear Question (LaTechEE)
I went with the 3.92 gears because I would have run out of gear at the end of the 1/4 mile and have to shift to 5th. the 3.92 are good to about 125 mph and 6400 mph in 4th gear. I got mine from Randy's Ring and Pinion. Those guys are very helpful and the gears are dana gears even though they are marketed under another name. I would recommend that the diff. be professionally set up because if it is not set up with the proper clearances and positioning of the ring gear on the pinion (in the middle of both) you will experience more noise and premature wear. The gas milage on my LT4 went from 29 - 17 to 26 - 19, so you will lose on the highway but should pick it up in city driving because of the ability to shift to 5th and 6th sooner.
Hope this helps.
Hope this helps.
