I was wondering if i should go with 3.73 or 4.10's? I have a 2005 chevy truck with a 4.8, mods are transgo shift kit, yank2600 stall and a nelson performance tune. I have 3.43 now. I have been reading everyones posts on here for a while but i don't think i have seen anything about which gears to go with
If you had asked this a few months ago I would have said 3.73's. Since I just went from 3.42's to 3.73's I have now changed my opinion. Go with the 4.10's.
[1/8 mile E.T. - 8.23 @ 82.86 mph w/1.82 60'] '98swb,4/6drop,20"RozziDeeps on 275/40ToyoProxes '98LS1/4L60E,TRCheaTR cam,Ported TB,Billet MAF ends,MSD8.5 superconductor wires,S&P midlengths,!EGR,!cats,2 1/2" true duals w/X-pipe,Dynomax Ultraflows,TCI 3000,billet servo,TCI deep aluminum pan,3.73's w/Auburn posi; Eclipse CD, Rockford 6 1/2's, Memphis 12's, Punch 200 ix, Punch 500x
It all depends on the OD of tires that you're running. 3.73s might be good for 27" tires but not worth a damn on 32s. 4.10s might be too high for 27s. 4.56s would be good on 29 or bigger tires. Its all a matter of how fast do you want to turn your engine at cruise speed or is this a race only vehicle? You could even go up to 4.88s if it's race only.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
You will want 4.10s and up for sure. Red is right on with his points.
Tattoos, Kustoms, Chops, Guns and Pits..........Need I say more? AFTERLIFE KUSTOMS.
Getting ready to put an 82 Chevy 1/2 ton blazer under the knife.
EL JEFE
ROUGHNECK
<div class='quotetop'>QUOTE(docone882000 @ May 28 2006, 12:01 AM) [snapback]54203[/snapback]</div>You will want 4.10s and up for sure. Red is right on with his points.
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I have 4.10's with 285/55/20 tires and they are just about perfect! I dont think I would have been happy with 3.73's and 4.56's would have been a bit much.. hope this helps.
what size tires are you running?
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