3.42 Vs 3.73
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Joined: Oct 2006
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From: Decatur, TN (N-W of Athens)
Yep, 2.73s belong ONLY in the V6 models, that's just retarded for a V8 -_- If you have 2.73s though you can't just buy someone's old 3.23s or 3.42s, different carrier between the two. Fun huh? They eff you with low *** gears, and eff you more if you want to upgrade ^_^
Just get a Powerglide and some 6.17s!! (Yes, 6.17, but PROBABLY not in a 10bolt lol GL3 : AXLE REAR, 6.17 RATIO)
Just get a Powerglide and some 6.17s!! (Yes, 6.17, but PROBABLY not in a 10bolt lol GL3 : AXLE REAR, 6.17 RATIO)
Yep, 2.73s belong ONLY in the V6 models, that's just retarded for a V8 -_- If you have 2.73s though you can't just buy someone's old 3.23s or 3.42s, different carrier between the two. Fun huh? They eff you with low *** gears, and eff you more if you want to upgrade ^_^
Just get a Powerglide and some 6.17s!! (Yes, 6.17, but PROBABLY not in a 10bolt lol GL3 : AXLE REAR, 6.17 RATIO)
Just get a Powerglide and some 6.17s!! (Yes, 6.17, but PROBABLY not in a 10bolt lol GL3 : AXLE REAR, 6.17 RATIO)
I have the 3.42's in my DD A4 and @ 81mph I'm running 2800 RPM. With my 2.73's I was running 2000 RPM's @ 80 MPH. Thats just a FYI. If you was to go to 3.73's I'd probably say it would be around 3000 to 3200 ish RPM's. 3.42's are awesome and do offer a great upgrade in performance. But 3.23's are also good for both gas mileage and performance. Kinda the best of both worlds, but definentaly leaving power out on the table. Good Luck with your choice. 
James
James
TECH Senior Member
iTrader: (3)
Joined: Oct 2006
Posts: 7,564
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From: Decatur, TN (N-W of Athens)
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So a friend of mine just bought a 95 Lt1 and it has the stock 3.23's. Tried to find a thread on feed back about changing to 3.42 or 3.73 but came up short. He's got a stock A4 4l60e, drives a lot of hwy miles. Do you think 3.73 will be too much for the hwy. Be nice to find a site with a chart on both.
Anything helps..thanks
Anything helps..thanks
AND THE LT1 M5 STOCK USE 3.42
TECH Regular
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From: Lake Jackson TX, south of Houston
I was going 3.73 even bought the gears and a friend with the same set up said 3.42 so thats how i went for years now, geat all around gear. Even better when its free out of a friend wreaked 6 speed car. 3.42 @ 80/2700rpm
3.73's for the win!!! I have a set in the 10 bolt and get decent mpg and the rpm at 75ish - 80ish is at 2500... Plus it'll put a grin on your face and a set of nuts in your car.. haha
Yeah I wish I had an M6! Their alot more fun IMO. Not to mention you can get alot better gas mileage with them.
Hell my 96 V6 Camaro got 30-32 MPg on the high way with 3.23's before the clutch went out. If it were a TA or Z-28 I'd guess about 20-25 MPG...
My A4 only gets 13 MPG Max. On highway/Street combined.
Nice looking car BTW
Hell my 96 V6 Camaro got 30-32 MPg on the high way with 3.23's before the clutch went out. If it were a TA or Z-28 I'd guess about 20-25 MPG...
My A4 only gets 13 MPG Max. On highway/Street combined.
Nice looking car BTW
I think you will too!
The cost of a used rearend....$300.00
The cost of Rear Diff Fluid.....$20.00
The time spent putting it in......6 Hours
The Look on your face when you go WOT......PRICELESS
The cost of a used rearend....$300.00
The cost of Rear Diff Fluid.....$20.00
The time spent putting it in......6 Hours
The Look on your face when you go WOT......PRICELESS
TECH Resident
Joined: Aug 2005
Posts: 821
Likes: 0
From: SW Florida
With my LT1 Z28 M6 with 3.73's I get about 24-26mpg on the highway, with a best of 29mpg on one of my long trips.
So Damn I feel bad for you..13mpg sucks
Yeah I wish I had an M6! Their alot more fun IMO. Not to mention you can get alot better gas mileage with them.
Hell my 96 V6 Camaro got 30-32 MPg on the high way with 3.23's before the clutch went out. If it were a TA or Z-28 I'd guess about 20-25 MPG...
My A4 only gets 13 MPG Max. On highway/Street combined.
Nice looking car BTW
Hell my 96 V6 Camaro got 30-32 MPg on the high way with 3.23's before the clutch went out. If it were a TA or Z-28 I'd guess about 20-25 MPG...
My A4 only gets 13 MPG Max. On highway/Street combined.
Nice looking car BTW
Registered User
Joined: Feb 2008
Posts: 42
Likes: 0
From: Portland OR
Seems like everyone with the A4 is running different rpm's at close to the same speeds. Guess you will just have to see how them 373's run for ya. Never heard anything bad about them. I'm putting mine in this next week.
