373 gears

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05-17-2007, 01:40 PM
whiteLS1TA

373 gears

hey im planning on putting 373 gears on my car, do i need to do naything else besides just putting them in? do i need to change anything?
05-17-2007, 01:42 PM
2000T/A Guru

Buy the install kit its really helpful but as long as you get series 3 carrier you should be fine.
05-17-2007, 02:02 PM
whiteLS1TA

Quote:

Originally Posted by 2000T/A Guru

Buy the install kit its really helpful but as long as you get series 3 carrier you should be fine.

do you know if motive gears are good? whats a series 3 carrier? do you see a differenence?
05-17-2007, 02:06 PM
2000T/A Guru

Well when you buy it should say what carrier it is and i have heard motives are pretty quiet. which is good
05-17-2007, 02:14 PM
WS6ICK

I bought the GM gears but Motive are made by GM. They make the least noise and are the best for your car. I also used the master install kit that came with everything. May as well change everything since your in there. Its pretty much an easy install. Just use the same shims on both sides of the carrier.
05-17-2007, 02:22 PM
clg82

Quote:

Originally Posted by 2000taws6

I bought the GM gears but Motive are made by GM. They make the least noise and are the best for your car. I also used the master install kit that came with everything. May as well change everything since your in there. Its pretty much an easy install. Just use the same shims on both sides of the carrier.

Do you know where to find a step by step instructions on how to do this install, I also have a 2000 automatic and was looking at putting a gear in. I am not to mechanically inclined but I think I could do it with some simple instructions. And the best gear to go with is a 3.73 right? It is my daily driver. I also want to get the install done before I have it dynoed so they can tune the car to recognize the gear. Thanks for the help, Chris
05-17-2007, 02:38 PM
WS6ICK

Quote:

Originally Posted by clg82

Do you know where to find a step by step instructions on how to do this install, I also have a 2000 automatic and was looking at putting a gear in. I am not to mechanically inclined but I think I could do it with some simple instructions. And the best gear to go with is a 3.73 right? It is my daily driver. I also want to get the install done before I have it dynoed so they can tune the car to recognize the gear. Thanks for the help, Chris

I used this and its very helpful. I have never done gears either and I had no problems with these instructions. Just make sure you have the tools and a press is helpful on the bearings.

http://www.keliente.com/gears1.htm

Here is another Website that is helpful for other mods.
http://www.bowlingss.com/LS1_How_To.htm
05-17-2007, 03:32 PM
clg82

Quote:

Originally Posted by 2000taws6

I used this and its very helpful. I have never done gears either and I had no problems with these instructions. Just make sure you have the tools and a press is helpful on the bearings.

http://www.keliente.com/gears1.htm

Here is another Website that is helpful for other mods.
http://www.bowlingss.com/LS1_How_To.htm

Looks a little to complicated to me! How much you think it would cost to have a reputable mechanic put it in? Do you think this would hinder gas mileage?:shower:
05-17-2007, 03:41 PM
WS6ICK

Not sure the cost, depends on the mechanic. Of course gas mileage will decline with lower gears. You wanna play, you gotta pay. But the launch with a stall converter is awesome.
05-17-2007, 03:43 PM
spokey07

hey whitels1ta do you drive an a4 or m6? if ur an a4 then ya get the 3.73 otherwise get the 4.10's sounds like you drive an m6
05-17-2007, 03:46 PM
slims00ls1z28

350-500 for GM gear installs usually. If you are not mechanically inclined and dont have the proper tools DONT install gears.
05-17-2007, 04:16 PM
clg82

Quote:

Originally Posted by slims00ls1z28

350-500 for GM gear installs usually. If you are not mechanically inclined and dont have the proper tools DONT install gears.

350-500 bucks for the install ouch!!!! You think it's worth it?
05-17-2007, 04:27 PM
slims00ls1z28

To have a trouble free/whine free many miles of fun out of them you bet. I had people offer to do it for like 250 but those are some of those redneck deals. I wouldn't trust a redneck deal on 2 things auto transmissions and GM rear ends , which is why I got a pro built trans and ford rear end :).
05-17-2007, 11:54 PM
whiteLS1TA

Quote:

Originally Posted by spokey07

hey whitels1ta do you drive an a4 or m6? if ur an a4 then ya get the 3.73 otherwise get the 4.10's sounds like you drive an m6

i have an m6 i was thinking of getting the 4.10s but right not im using my car as daily driver so ima have to wait onthe 4.10s until iget a little commuter. i heard the 3.73's well do the job tho aleast for now!
05-18-2007, 12:33 PM
slims00ls1z28

You won't see much if any difference with a M6 and 4.10's over the 3.73's in terms of gas mileage. Hell I got 4.10's in an Auto and it's nowhere near as bad as I expected going from a 2.73.Even with the stall I still am getting low 20's if I keep my foot out of it. But then again 90% of my drive is highway and When it goes into lockup 70 mph cruise is about 2700 rpms.
05-18-2007, 12:49 PM
whiteLS1TA

Quote:

Originally Posted by slims00ls1z28

You won't see much if any difference with a M6 and 4.10's over the 3.73's in terms of gas mileage. Hell I got 4.10's in an Auto and it's nowhere near as bad as I expected going from a 2.73.Even with the stall I still am getting low 20's if I keep my foot out of it. But then again 90% of my drive is highway and When it goes into lockup 70 mph cruise is about 2700 rpms.

hey do i need to get a hypertech computer chip or something to resest my settings on my car for the new gears i put in?
05-18-2007, 02:13 PM
slims00ls1z28

yep you will need it reprogrammed to get the speedo back right. It will still run right it just will read off.
05-18-2007, 02:16 PM
clg82

Quote:

Originally Posted by slims00ls1z28

You won't see much if any difference with a M6 and 4.10's over the 3.73's in terms of gas mileage. Hell I got 4.10's in an Auto and it's nowhere near as bad as I expected going from a 2.73.Even with the stall I still am getting low 20's if I keep my foot out of it. But then again 90% of my drive is highway and When it goes into lockup 70 mph cruise is about 2700 rpms.

Do you suggest 3.73 for an A4 and will I notice a difference?
05-19-2007, 02:36 PM
mrr23

Quote:

Originally Posted by clg82

Do you know where to find a step by step instructions on how to do this install, I also have a 2000 automatic and was looking at putting a gear in. I am not to mechanically inclined but I think I could do it with some simple instructions. And the best gear to go with is a 3.73 right? It is my daily driver. I also want to get the install done before I have it dynoed so they can tune the car to recognize the gear. Thanks for the help, Chris

you will need a press and dial indicators to get you pinion depth and backlash set correctly. do you know what gears you have now? it will determine if you have a 2 series carrier (2.73-3.08) or 3 series carrier (3.23-3.73). here's a webpage i made on how to swap gears.

http://www.stealthram.com/gearswap.htm
05-19-2007, 03:32 PM
slims00ls1z28

Quote:

Originally Posted by clg82

Do you suggest 3.73 for an A4 and will I notice a difference?

Yes and Yes. A4+3.73= match made in heaven.