Gear ratio question?
Thread Starter
Pro
Joined: Nov 2003
Posts: 667
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From: san antonio tx
Gear ratio question?
What options are avaible for an auto C5 to convert from the 3.15 axle to the 3.42 or 3.73 setup?
Can i buy a stock 3.42 from a manual and use that? What are the prices on the complete differential?
Can i buy a ring and pinion only? if so how much and from who?
Thank you for your help
Can i buy a stock 3.42 from a manual and use that? What are the prices on the complete differential?
Can i buy a ring and pinion only? if so how much and from who?
Thank you for your help
Team Owner
Joined: Apr 2001
Posts: 54,204
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From: S.W. Ohio. . . . . . NRA Life Member
Drifting
Joined: May 2003
Posts: 1,715
Likes: 1
From: cAshburn VA
yes, you can use a diff from a six speed. 3.42s would be an upgrade for you, but I often hear the A4 guys suggesting to go to 3.73s if you are going to the trouble, and get a good stall to match it up.
You will need your shift points readjusted after the swap, so if you are not so equipped to program, have someone or something standing by to do that for you.
And I wouldn't put a 3.42 or better gear into a series 1 carrier (which yours should be, I believe), gette a 6speed stocker series 2, or better yet the LS6 series 3 carrier. There was someone selling one in the C5 parts for $750, good deal too, probably gone though!
You will need your shift points readjusted after the swap, so if you are not so equipped to program, have someone or something standing by to do that for you.
And I wouldn't put a 3.42 or better gear into a series 1 carrier (which yours should be, I believe), gette a 6speed stocker series 2, or better yet the LS6 series 3 carrier. There was someone selling one in the C5 parts for $750, good deal too, probably gone though!
Melting Slicks
Joined: Oct 2006
Posts: 2,228
Likes: 5
From: Gainesville Georgia
Wow I don't have an auto, but converting from a 3.15 to a 3.73 should really make a drastic Improvement! Even the 3.42's would make a big difference, my friend went to the 3.42 and he said the difference Is like night & day.... He orig. had the 2.73's though. Good luck & enjoy your new found power!! 
