3.73 how much time does it knock off

[V6Firebird94]

im runin out of things i can think of doin besides a posi and 3.73...and turbo down the road......but before i spend the money on the gear and posi-differintial....how much time could i expect to know off with a 3.73 (i have an automatic transmission w/shift kit and corvette servo)...any idea of time knock off would be helpful and greatly appreciated

[SlimJim1284]

depends on what kind of gearing you currently have

[Harry94]

I had 3.23 gears and put 3.73 LSD and have so far knocked off .3 in the 1/4(16.595-16.296). I think I can get at least .2 more with better track prep. 60' has gone from a 2.486 to a 2.235.

[V6Firebird94]

any recommendation on a brand for the gear and im gonna throw in a posi differential not sure itll help nething but spread the ware n tear on both tires during a burn out

[unvc92camarors]

i place a vote in for gm gears
you can find them on ammperformance.com

[Harry94]

GM gears and SLP LSD.

[SLOWBRAEATER]

gm superior gears all the way, they are much quieter

[1998silverbird]

Motive gears!! My 3.73's make no noise.. In fact I could hear my stock 3.23's and now with the new gears they dont make a sound.. It all depends on the install and how many miles you put on them before you romp on it.. I put 400 miles just to be safe.. I heard my friends GM 3.73's and they would wind when cruising and downshifting.. Motive all the way..Do a search for motive gears on here and there are a couple sites were you can get them for 139.00.. As for time knocked off.. How good do you hook now?? When you get 3.73's you will be spinning a little more then you did.. With my stock 3.23's and my suspension mods I use to launch @ 2000rpms on the street without spinning on street tires.. Now with the 3.73's I can launch @ 1400rpms without spinning.. anything higher then that and I will destroy my tires.. I hear anywere from .1-.5 tenths off your time.. Cruising at 65mph my rpms are at 2350.. The gears will bump you up 300 rpms..

[V6Firebird94]

my car doesnt wanna hook up...i dropped the tire pressure below 20 and they still spun aways down the track....so i just picked up some Nitto 555r drag radials hopefully that will solve my problem.....so ill look into thos GM gears and Motives.....how are the richmond gears?

[Dru]

damn u dropped ur tire pressure bellow 20 man my tires would have ****in rippped in half thats almost flat

[Riles]

I dropped .4 seconds, and I havent learned how to launch yet. But, I am having such a terrible time trying to find a speedometer recalibrator, I dont know if it was worth it.

[WickEdSix9838]

ive lost .43 at my home track and about .57 at the track at angelo, that was with 3.73/LSD combo, its WAY worth the money you spend...

[1998silverbird]

<blockquote>quote:</font><hr>Originally posted by Riles:
I dropped .4 seconds, and I havent learned how to launch yet. But, I am having such a terrible time trying to find a speedometer recalibrator, I dont know if it was worth it.<hr></blockquote>


I made a switch to turn off and on my speedo.. It also shuts off the odometer.. I had the SLP recalibrater but it stopped working for some reason so I yanked it out..

[1998silverbird]

<blockquote>quote:</font><hr>Originally posted by V6Firebird94:
my car doesnt wanna hook up...i dropped the tire pressure below 20 and they still spun aways down the track....so i just picked up some Nitto 555r drag radials hopefully that will solve my problem.....so ill look into thos GM gears and Motives.....how are the richmond gears?<hr></blockquote>

4 Letters will solve that problem.. LCA's

[Bliggida]

People, just FYI, no gears make noise if properly installed. If they whine the lash is set incorrectly.

Whining is not condusive to having lower gears either.

Problem is, usually when people get gears they step up instead of down, going with lower gears. The fact that they are installed (incorrectly) and whine, people assume big gears or this and that brand whine. No, it has nothing to do with the company so long as they are not a bargain brand.

Bearings can also play a big role in gears that whine. Did on mine. No set of gears could have possibly been louder than what mine were (due to normal wear and tear, plus some neglect) those were factory installed, GM grade 3.23's.

4.88 gears will be just as silent as 2.73's, whether SLP, Motive, Richmond, Superior, GM whatever you choose.

I personally favor Richmond because of their quality and strength, as they are found in most race cars.