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Redbrd
03-21-2006, 09:10 PM
Hey whats up ,just wanted to pick your brains for some numbers,replacing a 3.23 gear with a 3.73 gear should yeild what kinda gains as far as 10ths through the eighth in my 95 with auto??And will they be tougher on my rear end and tranny??
Firehawk 526
03-21-2006, 09:26 PM
The higher the ratio, the smaller the gear teeth, but their are other factors involved: posi, locker, limited slip, 12 vs 10 bolt, etc.

I'll have to defer to the MODS on this one
Redbrd
03-23-2006, 06:59 PM
Umm no other input ????????????????????????????????????????????
crb806
03-23-2006, 07:05 PM
I am thinking of doing 373s too i was also wondering if it would be rougher on the tranny and rear end, and also if a 95LT1 came with 323s does that mean it is series carrier 3?
Firehawk 526
03-23-2006, 07:09 PM
LS1tech has some outstanding info on gear selection, etc., but I believe the A's came w/2.73's and M's came w/3.23

Not up on the LT's as much as I am the LSx's
http://www.ls1tech.com/forums/showthread.php?t=298077
http://www.ls1tech.com/forums/showthread.php?t=412366
crb806
03-23-2006, 07:58 PM
I think the A4s came with 273s and 323s while M6 cames with 3.42s.
Firehawk 526
03-23-2006, 08:00 PM
That's right, my 96 Auto V6 had the optional 3.23 performance package!

Damn memory is goin'!
Redbrd
03-23-2006, 08:05 PM
but i still really want to know some gains as far as et from a gear swap , i just sound whiney now dont i
Redbrd
03-23-2006, 08:12 PM
Reason being,if i could get my car into the say 8.70s through the eighth with cai ,headers ,exhaust,and gears and no spray it would be sweet. but as of yet i havent been to the track yet to see where the car is at so right now im doing what i hate and thats speculating..But Im going next weeekend hopefully to get my base numbers.. wish me good luck and good numbers..
BLACK KNIGHT
03-24-2006, 04:53 PM
I think the A4s came with 273s and 323s while M6 cames with 3.42s.

Yes, that's what I understand...the option code on my 95 LT1 says it has 3.23s.

From what I've been able to tell from other people's experience...going from 3.23s to 3.73s in the 1/4 mile yields a .10-.20 reduction in time. Since your talking the 1/8th I wouldn't expect to see more than a .10 reduction in time by just changing the gears.