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conig
Dodge Dakota
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8/05/2002
11:04:02
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 Subject: about to buy. 4.10 open verse 3.92 lsd.
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currently I have the 3.55 open axle on my 2000 4.7liter. I was wondering which would probable yeild a faster time down the 1/4. I will eather get a set of 4.10 gears installed(650.00) or purchase a used 9-1/4 axle from a junk yard with 3.92 gears and a lsd.(750.00+100.00 shipping).
I wish I could afford to get a powertrax locker but I can't. and the price does not seem worth it to me eather. plus I have perfected the one wheel drive launch =p.
all opinions welcome.
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CW
GenIII
8/05/2002
11:48:26
|  RE: about to buy. 4.10 open verse 3.92 lsd.
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If you get 4.10s with a open diff you will just smoke the tire and I mean one tire. 3.92 LSD is a good way to go. You have a auto right? 4.10 LSD would be perfect IMO.
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods
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conig
Dodge Dakota
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8/05/2002
12:14:45
| RE: about to buy. 4.10 open verse 3.92 lsd.
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thats what I was thinking but I don't think I can afford the lsd(or locker) with the 4.10 gears the only price I can find for the locker is 429.98(powertrax) from summit racing. is there another brand that might be cheaper.
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D
Dodge Dakota
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8/05/2002
12:14:56
| RE: about to buy. 4.10 open verse 3.92 lsd.
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4.10's cost a little over $200 here is the link :
http://www.truckperformance.com/products/
?searchtype=d&sortorder=&urlsubcategory=
Drivetrain&productcategory=Ring+%26+
Pinions&sf4=CHRYSLER+9.25-INCH+
DIFFERENTIAL+%2812-BOLT+COVER%29&
sf5=4.10+GEAR+RATIO
and the powertrax no slip costs a little over
$400, a locker will run about $300 here is the
link:
http://www.truckperformance.com/products/
?searchtype=d&sortorder=&urlsubcategory=
Drivetrain&productcategory=Lockers%2FNo+
Slip+Differentials&sf1=DODGE&sf2=2001&
sf3=DAKOTA
I'm sure thats not the cheapest place to
purchase, but its cheaper than buying a used
one from a junk yard.
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conig
Dodge Dakota
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8/05/2002
13:34:42
| RE: about to buy. 4.10 open verse 3.92 lsd.
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D your forgetting install every were around here (7 diff places) has been giving me an estimate of 500.00 for the locker and 300.00-400.00 for the gears. with that included a junk yard axle is cheaper,or are these estimates rediculously high.
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D
Dodge Dakota
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8/05/2002
17:55:28
| RE: about to buy. 4.10 open verse 3.92 lsd.
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buy the parts seperate, and then just pay for
labor. if you check around, $400 for gears is
way to much, unless you have a super old
rear end that needs an installation kit for the
total rebuild. if it is newer, you wouldnt have to
buy the installation kit. the labor shouldnt be
too much. I have heard its a pretty install, I will
be doing mine pretty soon. remember, they
will mark up parts at least 50%. labor is one
thing, getting ripped off for parts is another.
check with 4wheelparts.com, they have some
pretty decent prices on parts.
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conig
Dodge Dakota
JOIN HERE
8/05/2002
17:58:37
| RE: about to buy. 4.10 open verse 3.92 lsd.
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how do you adjust tire ratios effect on gearing. my factory tire were 29inches tall and the one's I have now are 27. I tried using a basic porportion but I got 4.53 and that seems alot higher than what I have.
Now I'm thinking of getting just the locker to improve my traction and times.
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POWER HUNGRY
Dodge Dakota
JOIN HERE
8/05/2002
19:44:00
|  RE: about to buy. 4.10 open verse 3.92 lsd.
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Message:
A simple equation for finding out tire changes have on gearing: (new tire/old tire x rear gear= the result the new tires have on what the gearing feels like). To find the gear ratio required to fix the speedometer reading(old tires/new tires x stock rears= ideal ratio). If you are looking for better traction WWW.MANCINIRACING.COM HAS THE HEAVY DUTY AUBURN DIFF. FOR 9 1/4 REARS FOR $295. THEY HAVE GEARS FOR $200 EITHER 3.91 OR 4.10 MOTIVE GEAR BRAND.RICHMOND BRAND COST $295 FOR 3.91 OR $280 FOR 4.10 . GOOD LUCK WITH WHAT YOU CHOOSE TO DO!
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bowtiecrusher
Dodge Dakota
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8/05/2002
21:46:28
| RE: about to buy. 4.10 open verse 3.92 lsd.
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if i have a 3.55 lsd and if i change it to 4.10 will i need a diffrent carrier?
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CW
GenIII
8/05/2002
22:37:58
| RE: about to buy. 4.10 open verse 3.92 lsd.
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No you can run 4.10s.
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods
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conig
Dodge Dakota
JOIN HERE
8/06/2002
10:30:18
| RE: about to buy. 4.10 open verse 3.92 lsd.
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Message:
I think I will keep my 3.55 gears according to an online calculator I have 3.73 axle ratio.
now since I want to order these today should I get the auburn lsd or the powertrax locker.
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Demon-Xanth
Dodge Dakota
JOIN HERE
8/06/2002
11:34:16
| RE: about to buy. 4.10 open verse 3.92 lsd.
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If you originally spun 2000RPM@65MPH, then went to 29" to smaller 27" tires, you'll be spinning 2150. Going to a 3.92 from a 3.55 after that will give you 2375, a 4.10 will yeild about 2480RPM. To get back to the original RPM with the smaller tires you'd need a gear ratio of about 3.30.
Basic formula:
New RPM@given speed=Old RPM@given speed*(old tire/new tire)*(new gear/old gear)
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99Dak5.2L4x4
Dodge Dakota
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8/07/2002
09:55:17
| RE: about to buy. 4.10 open verse 3.92 lsd.
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I have 3:55s' in my 99 Dak and I've found rear gears for my 8.25 axel but I can't find a place that sells anything for the front of our trucks (Dana 35). Since my truck is a 4x4 I need to have gears that match. I want either 4:10s or 4:56s. Anyone know if a company makes anything for the front of our trucks?
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conig
Dodge Dakota
JOIN HERE
8/07/2002
10:43:33
| RE: about to buy. 4.10 open verse 3.92 lsd.
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4X45.2L CHECK RINGPINION.COM OR TRUCK PERFORMANCE AT THE LINK ABOVE POSTED BY D.
I THINK I WILL KEEP THE 3.73 AXLE REATIO I HAVE NOW(FOUND A GOOD ON LINE CALCULATOR) BUT I DID ORDER THE POWERTRAX LOCKRIGHT LOCKER YESTERDAY.
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D
Dodge Dakota
JOIN HERE
8/07/2002
14:46:26
| RE: about to buy. 4.10 open verse 3.92 lsd.
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Message:
4wheelparts.com has a real nice chart set up,
it tells you the gear ratio, and rpms @ 65mph.
it also lets you know if your mpg's will be
worse or not.
http://www.4wheelparts.com:80/
Tirel_gear_ratio.asp
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Rob
GenIII
8/07/2002
16:18:20
| RE: about to buy. 4.10 open verse 3.92 lsd.
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I also have a 27in diameter but I think I will get the 4.10 I fooled around on some calculators and it seemed to be the ideal selection.I think with are 3.55s the ratio with a 27in tire is like a 3.69 and with the 4.10s it would be like 4.2- and at 77mph the tach would be 3000.
robertshaw 180 thermostat,Z-Tube,Magnaflow stainless exhaust,jet stage 2,throttle body spacer,,Street scene bumper cover,Stull full billet grill and shell,street scene gen 2 rollpan,Apc clear corners,Apc euro tails,DJM 2inch control arms and 3 inch block,power slot brake rotors 18x8 boyd atlas rims
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POWER HUNGRY
Dodge Dakota
JOIN HERE
8/10/2002
11:50:10
| RE: about to buy. 4.10 open verse 3.92 lsd.
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99Dak5.2L4x4,
WWW.REIDERRACING.COM has what your looking for. They have reverse gears for dana 35's in ratios(3.55, 3.73, 4.10, 4.56, 5.13). Only thing is they don't have prices on thier site.
WWW.DRIVETRAIN.COM also have reverse dana 35 gear sets (3.27, 3.55, 3.73, 4.10) for around $230. Both sites have different types of limited slips, lockers and ARB's air lockers.
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GRiD
Dodge Dakota
JOIN HERE
8/10/2002
18:35:40
| RE: about to buy. 4.10 open verse 3.92 lsd.
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I also want to change my ratio's. I am going to add some performance mods and want the acceleration to be faster than stock. I have a 2002 4.7L Multi-speed auto 4X4 with the LSD. Any suggestions on which would be the best to get? I am aiming for the fastest 4X4 Dak in Winnipeg, Manitoba.
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conig
Dodge Dakota
JOIN HERE
8/11/2002
13:13:14
| RE: about to buy. 4.10 open verse 3.92 lsd.
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Message:
canacelled the order on my locker. truck performance sucks I paid 70$ for two day air. when I don't get it in two days I call. yes sir thats scheduled to go out next thursday. and under the part it said instock.
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blueballs
Dodge Dakota
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8/12/2002
02:10:22
| RE: about to buy. 4.10 open verse 3.92 lsd.
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go to the local 4x4 shop they have good gears and good prices
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kota on 20s
GenIII
8/12/2002
02:29:29
| RE: about to buy. 4.10 open verse 3.92 lsd.
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Message:
D, are you doing your gears yourself?
-Eric
Injection is nice, but i'd rather be blown.
5.2L, 5speed. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, carsound cat, dumped gibson
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Texas Todd
Dodge Dakota
JOIN HERE
8/12/2002
10:33:00
|  RE: about to buy. 4.10 open verse 3.92 lsd.
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CW,
YOu wrote that the open diff would only power one tire? I thought the the open put the same power to both wheels in a straight line, as opposed to the LSd, which only gets 15%.
Which makes me go 'hhhmmmmmm'
The few times I light the tires on my 01 QC 4.7 5spd, on flat, dry, clean cement streets, BOTH tires leave the same thick black mark in the street! If only 15% power to one rear wheel will do that, not bad. Makes you go HHHMMMM.
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Texas Todd
Dodge Dakota
JOIN HERE
8/13/2002
10:48:41
|  RE: about to buy. 4.10 open verse 3.92 lsd.
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Message:
Take me to the top, please.
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POWER HUNGRY
Dodge Dakota
JOIN HERE
8/13/2002
22:01:17
| RE: about to buy. 4.10 open verse 3.92 lsd.
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Message:
TEXAS TODD
Open diffs only power the passenger rear tire in hi-po situations(BURNING OUT). Lsd units power both tires in astraight line to a certain extent. (if the driver rear gets a lot of traction the right rear will spin only) An example I saw when I was at the track, some camaros would start to burn-out and once the left rear tire got sticky it stop spinning and the right continued spinning. This has a lot to do with how worn the lsd is and if it is a stock replacement or a hi-po unit.
A locker powers both wheels evenly in a straight line.
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POWER HUNGRY
Dodge Dakota
JOIN HERE
8/13/2002
22:01:48
| RE: about to buy. 4.10 open verse 3.92 lsd.
IP: Logged
Message:
TEXAS TODD
Open diffs only power the passenger rear tire in hi-po situations(BURNING OUT). Lsd units power both tires in astraight line to a certain extent. (if the driver rear gets a lot of traction the right rear will spin only) An example I saw when I was at the track, some camaros would start to burn-out and once the left rear tire got sticky it stop spinning and the right continued spinning. This has a lot to do with how worn the lsd is and if it is a stock replacement or a hi-po unit.
A locker powers both wheels evenly in a straight line.
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D
Dodge Dakota
JOIN HERE
8/13/2002
22:59:46
| RE: about to buy. 4.10 open verse 3.92 lsd.
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kota: I do nothing myself lol. my brother in law
is the mechanic, he has the tools and the
shop. I just learn as I go. doesnt look like I
will have them done by saturday ; (
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conig
Dodge Dakota
JOIN HERE
8/13/2002
23:00:57
| RE: about to buy. 4.10 open verse 3.92 lsd.
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well. after I cancalled the order the locker camein and I got it put in today. not bad at all on the street all I have to say is $#%@. now I power brake up to about 1500rpm let go of the brake and drop it. get eather a bark from the tires or light wheel hop. honestly I need a little more spin for good acceleration. added tons to my launch normally in the same situation I would have burnt the back right tire all the way through 1st gear.
3.55 lockright.
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D
Dodge Dakota
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8/14/2002
00:48:25
| RE: about to buy. 4.10 open verse 3.92 lsd.
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conig....how was the install?
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conig
Dodge Dakota
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8/14/2002
10:55:46
| RE: about to buy. 4.10 open verse 3.92 lsd.
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I had a shop do the install it was only 129.00 I didn't want to do it myself they said it was very strait forward.
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D
Dodge Dakota
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8/14/2002
12:28:02
| RE: about to buy. 4.10 open verse 3.92 lsd.
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Message:
man that sounds like only 1 1/2 hours of labor.
I need to convince my brother to help, that
sounds too easy. Did you change the gears
while you had it apart?
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conig
Dodge Dakota
JOIN HERE
8/14/2002
14:39:27
| RE: about to buy. 4.10 open verse 3.92 lsd.
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no I didn't do gears. currently I don't know what tires I want but they will be taller or if I should drop it some more. with the gears I want4.10 and my 27 inch tire the engine will simply be reving to high for my wallet to keep up. lol
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