Dana rear end question
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Joined: Sep 2002
Posts: 55
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From: Sebring FL
Dana rear end question
Ok, sorry for so many questions on the Dana 36 rear end's but I want to make sure I get the correct rear end. I hear people saying that a 3:73 would put the car at to high of an RPM on the hiway at 60. Would a 3:54 be better on hiway? what RPM would it typically be? How muc top end would I lose? how mcuh better out of the hole would a 3:73 be VRS. 3:54? Thanks for your patients guys and for the replys.
1992 LT1 Corvette :confused:
1992 LT1 Corvette :confused:
Drifting
Joined: Jun 2002
Posts: 1,305
Likes: 11
From: Savannah Ga.
Re: Dana rear end question (sebvette)
I just put in 3.54s........ at 2600 rpms I'm around 70mph in OD...you probablly have higher rpms with 3.73s But let me tell you thats the best mod IMO hands down!!!!!!! the car will come alive!!!!! :auto:
Racer
Joined: Sep 2002
Posts: 317
Likes: 1
From: Maple Valley WA
Re: Dana rear end question (sebvette)
To figure out new RPM's for a new gear, use a simple ratio:
old ratio new ratio
---------- = -----------
old RPMs X
Cross multiplying gives (with 3.07 as old gear ratio and 3.73 as new ratio and 2000 rpm's at 65mph:)
3.07X = (3.73)(2000)
3.07X = 7460
X = 2429.96 RPM's for 3.73 gear ratio at 65MPH
Jay
old ratio new ratio
---------- = -----------
old RPMs X
Cross multiplying gives (with 3.07 as old gear ratio and 3.73 as new ratio and 2000 rpm's at 65mph:)
3.07X = (3.73)(2000)
3.07X = 7460
X = 2429.96 RPM's for 3.73 gear ratio at 65MPH
Jay
Le Mans Master
Joined: Apr 2000
Posts: 6,341
Likes: 1
From: Shelton CT
Re: Dana rear end question (redcorvettedave)
I just put in 3.54s........ at 2600 rpms I'm around 70mph in OD...you probablly have higher rpms with 3.73s But let me tell you thats the best mod IMO hands down!!!!!!! the car will come alive!!!!! :auto:
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Re: Dana rear end question (sebvette)
Try driving your car in drive (direct) at high speeds. Experience different cruise rpms, so you'll know how they feel, and how YOU feel about them. Analize your driving habits and your tolerence for different cruize rpms. Do some math. What one guy (me, maybe) loves, you may hate. Good luck, and...
RACE ON!!!
RACE ON!!!
Drifting
Joined: Jun 2002
Posts: 1,305
Likes: 11
From: Savannah Ga.
Re: Dana rear end question (CFI-EFI)
quote:
________________________________________ _____________
Try driving your car in drive (direct) at high speeds. Experience different cruise rpms, so you'll know how they feel, and how YOU feel about them. Analize your driving habits and your tolerence for different cruize rpms. Do some math. What one guy (me, maybe) loves, you may hate. Good luck, and...
________________________________________ ________________________
:iagree: try launching and driving those 3.07s in "D" you'll might have all the gear you want...IMO 3.07s is the best gear for HWY driving....but for "A" kicking acceleration you GOTTA get 3.54s or 3.73 for an A4..
________________________________________ _____________
Try driving your car in drive (direct) at high speeds. Experience different cruise rpms, so you'll know how they feel, and how YOU feel about them. Analize your driving habits and your tolerence for different cruize rpms. Do some math. What one guy (me, maybe) loves, you may hate. Good luck, and...
________________________________________ ________________________
:iagree: try launching and driving those 3.07s in "D" you'll might have all the gear you want...IMO 3.07s is the best gear for HWY driving....but for "A" kicking acceleration you GOTTA get 3.54s or 3.73 for an A4..
Le Mans Master
Joined: Oct 1999
Posts: 9,713
Likes: 3
From: Sachse Texas
Cruise-In I Veteran
Cruise-In II Veteran
Re: Dana rear end question (az28)
Is the dana 36 the rear end used in automatic cars?
I would vote for the 3.54's for the Automatic. :D
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Team Owner
Joined: Sep 2001
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
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Re: Dana rear end question (Vette92)
Why does everybody worry about losing top-end? When are you actually gonna be driving at 150+mph?
If you do alot of hwy driving, go 3.54. Otherwise 3.73.
If you do alot of hwy driving, go 3.54. Otherwise 3.73.
Melting Slicks
Joined: May 2002
Posts: 3,424
Likes: 1
From: Tucson Az
St. Jude Contributor
Re: Dana rear end question (vader86)
Why does everybody worry about losing top-end? When are you actually gonna be driving at 150+mph?
If you do alot of hwy driving, go 3.54. Otherwise 3.73.
If you do alot of hwy driving, go 3.54. Otherwise 3.73.
:thumbs:
[Modified by edsalinas, 10:30 AM 4/29/2003]
Drifting
Joined: Oct 2001
Posts: 1,759
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From: Round Rock,Austin, Texas
Re: Dana rear end question (vettef6)
Is your rear end quiet or does it make noise after installing aftermaket gears as Richmond Gears says it will?
Race Director
Joined: Oct 2001
Posts: 19,653
Likes: 428
From: Melbourne Florida
Cruise-In IV Veteran
Re: Dana rear end question (sebvette)
I have 3:73's in my Dana 36...all that's been said is true...I cruise at 70 mph around 2500 rpm..no biggie...took an 1800 mile road trip last year and am heading to Cruise In IV in 3 weeks, about 1500 miles round trip...here's the bottom line..if you just want to perk things up a bit go with 3:54's...if you enjoy drag racing at all or want some serious snap go with 3:73's and a Transgo shift kit like me...the highway part is not an issue... good luck.. :D
