A-4 w/ 3:73 gears
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Intermediate
Joined: Oct 2005
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A-4 w/ 3:73 gears
Does anyone have experience with a C-5 A-4 3:73 combination? I have had this gear with a tremec 5-spd in a C-3 and it was excellent. The Tremec has a .67 O/D. I believe the 4L60E has a .70 O/D. I have 3:15's now but don't drive long distances. Just occasional hot rodding around so. florida. I'm am also not sure how I will get this convertible to hook up even with ZO6 tires and wheel. The motor has all the bolt on performance stuff, i.e. long tube headers etc. Anyone with this set up please respond. Thanks---Robert
Team Owner
Joined: Oct 2001
Posts: 46,766
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From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Hello Robert, welcome to the forum. 
I am running that set-up and love it. I am also running a Yank SS3600 T/C, street tires don't hold worth a damn. 
However hitting the track with some ET Streets well now it's a whole different ball game. Feel free to hit Moroso during any of the Corvette Challenge events, you will find all sorts of combinations from mild to wild, and everything in between. 
Click my signature for all the info. 
Bob
I am running that set-up and love it. I am also running a Yank SS3600 T/C, street tires don't hold worth a damn. However hitting the track with some ET Streets well now it's a whole different ball game. Feel free to hit Moroso during any of the Corvette Challenge events, you will find all sorts of combinations from mild to wild, and everything in between. Click my signature for all the info. Bob
Safety Car
Joined: Aug 2000
Posts: 4,154
Likes: 1
From: Murphy TX
Cruise-In II Veteran
Even with a low STR converter like a SY3500 traction is sketchy on street tires, but not too bad. First gear is over pretty quick. You'll probably like the driveability improvement over the 3.15 a lot.
Burning Brakes
Joined: Apr 2003
Posts: 908
Likes: 4
From: TROY MI
I love mine. I ran them with the stock TC for a year and they realy woke up the car. I now have a SS3600 TC and this combo. is great. I am running 305/35/18 Nitto DRs on the street and they hook up fine.
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Melting Slicks
Joined: Mar 2001
Posts: 2,871
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From: Oceanside, Ca. Ca.
Originally Posted by shulamite
Does anyone have experience with a C-5 A-4 3:73 combination? I have had this gear with a tremec 5-spd in a C-3 and it was excellent. The Tremec has a .67 O/D. I believe the 4L60E has a .70 O/D. I have 3:15's now but don't drive long distances. Just occasional hot rodding around so. florida. I'm am also not sure how I will get this convertible to hook up even with ZO6 tires and wheel. The motor has all the bolt on performance stuff, i.e. long tube headers etc. Anyone with this set up please respond. Thanks---Robert
they worked out for me.
Bruce1
Instructor
Joined: Jun 2005
Posts: 214
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From: Wilson NC
For mostly street driving the 3.73's are the best, if you 1/4 mile drag alot then the 3.42's will be better if you have some decent mods. I love the 3.73's I have, but when I hit the 1/4 I do run out of gear at the very end. Still manage 11.6 @123 though on street tires spinning.
Safety Car
Joined: Aug 2000
Posts: 4,154
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From: Murphy TX
Cruise-In II Veteran
Originally Posted by zoomz
Dont you guys run out of gear in the 1/4 with the 373's ?
Im at 6200 rpms in 3rd going across the line with a 342 .
Im at 6200 rpms in 3rd going across the line with a 342 .
Waka, Waka, Waka!
Joined: Jun 2002
Posts: 2,435
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From: Richmond Virginia
CI 4-6-8 & 10 Veteran
St. Jude Contributor
I have a 3.73 behind my A4 with a stock TC. I also have the standard bolt-ons and put 353 HP to the rear wheels. The poor runflats never had a chance. Pressing the peddle to the floor is nothing more than a way to make the DIC read TRACTION SYS.
My car had the 3.73 when I bought it, and truth-be-told, I would rather it wasn't there. I spend a bit of time on the interstate (I put 4K on the clock in the first month, but that was abnormal even for me) and the fuel milage would be nice. But the thing pulls like mad without downshifting in any gear, so unless I am on a long trip, I don't really mind.
If this car was NOT my daily driver, I would think that a 3.73 is the least gear I would want. As a DD, I think that a 3.73 is the most gear I would want. So all-in-all I am happy enough with it not to spend money changing it.
My car had the 3.73 when I bought it, and truth-be-told, I would rather it wasn't there. I spend a bit of time on the interstate (I put 4K on the clock in the first month, but that was abnormal even for me) and the fuel milage would be nice. But the thing pulls like mad without downshifting in any gear, so unless I am on a long trip, I don't really mind.
If this car was NOT my daily driver, I would think that a 3.73 is the least gear I would want. As a DD, I think that a 3.73 is the most gear I would want. So all-in-all I am happy enough with it not to spend money changing it.
Melting Slicks
Joined: Nov 2003
Posts: 3,396
Likes: 2
From: North Manchester Indiana
DTE 373 and a yank 3200...great combo...
lotsa tire spin, but still managable and drive very nice
even with the maggie.....I would say with lotsa hp (over 450) 342 gears would be a better choice. You would have better mileage and the power to pull them nicely
373 gears are quite fun and dont hurt mileage much below 70
lotsa tire spin, but still managable and drive very nice
even with the maggie.....I would say with lotsa hp (over 450) 342 gears would be a better choice. You would have better mileage and the power to pull them nicely
373 gears are quite fun and dont hurt mileage much below 70