Replace entire Differential or just gears?
Thread Starter
Le Mans Master
Joined: Apr 2006
Posts: 5,933
Likes: 13
From: The Beautiful Inland Empire WA.
Replace entire Differential or just gears?
I have a 98 A4 with the 3.15's. As the diff is leaking slightly (common, I know...) I thought as long as they were going to R&R that, this would be a good time to go to 3.73's.
My question is this ---- there is a really good Corvette and Mustang racing shop available to me. Can the gears be changed by a competent mechanic or is the alignment of the ring and pinion so critical that it would be best to purchase an entire diff and have them install that?
My question is this ---- there is a really good Corvette and Mustang racing shop available to me. Can the gears be changed by a competent mechanic or is the alignment of the ring and pinion so critical that it would be best to purchase an entire diff and have them install that?
Last edited by C6NRED; Nov 13, 2006 at 04:51 PM.
Burning Brakes
Joined: Aug 2006
Posts: 789
Likes: 38
From: Shreveport LA
Originally Posted by Pewter Dream
I have a 98 A4 with the 3.15's. As the diff is leaking slightly (common, I know...) I thought as long as they were going to R&R that, this would be a good time to go to 3.73's.
My questions is this ---- there is a really good Corvette and Mustang racing shop available to me. Can the gears be changed by a competent mechanic or is the alignment of the ring and pinion so critical that it would be best to purchase an entire diff and have them install that?
My questions is this ---- there is a really good Corvette and Mustang racing shop available to me. Can the gears be changed by a competent mechanic or is the alignment of the ring and pinion so critical that it would be best to purchase an entire diff and have them install that?
Team Owner
Joined: May 2005
Posts: 23,682
Likes: 9
From: Flagstaff Az.
gears
Since yours is a 98 I would recommend buying a new diff- a little over a $1000 and selling your 3:15s to some one with an a4 who has 2:73s. That way you will have new gears, posi, bearings, plus not have to worry about the setting up of the new gears in your old diff. Andy at A&A did mine and I sold the 3:15 diff here on the forum. Also the labor is less to change a diff compared to pulling one apart and installing the new gears. Godd luck with what ever you choose to do.
