3.45 gears
Race Director
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From: Sin City
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13
Originally Posted by vette&f-bod lover
are you asking how 3.45's compare to the stock 2.59,or 3.07's in an automatic C4?please give some more details.
That plus auto or manual trans.
Thread Starter
Intermediate
Joined: Jun 2005
Posts: 35
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well the corvette is a base coupe with the optional lt4 and zf 6 speed. i want to know how it compares to the
GHO - 3.54 axle ratio
GM1 - 2.59 Rear Axle Ratio
GM3 - 3.45 Rear Axle Ratio (8.5 in. Ring Gear)
GT7 - 3.33 rear axle ratio
GU2 - 2.73 Rear Axle Ratio
im not exactly sure which gears go with which transmition. im preatty new to corvettes but im trying to learn. id like to know how they rate
thanks
Richard
GHO - 3.54 axle ratio
GM1 - 2.59 Rear Axle Ratio
GM3 - 3.45 Rear Axle Ratio (8.5 in. Ring Gear)
GT7 - 3.33 rear axle ratio
GU2 - 2.73 Rear Axle Ratio
im not exactly sure which gears go with which transmition. im preatty new to corvettes but im trying to learn. id like to know how they rate
thanks
Richard
Safety Car
Joined: Sep 2002
Posts: 4,971
Likes: 9
From: The reason time exists is so everything doesn't happen at once
Originally Posted by richardtw
well the corvette is a base coupe with the optional lt4 and zf 6 speed. i want to know how it compares to the
GHO - 3.54 axle ratio
GM1 - 2.59 Rear Axle Ratio
GM3 - 3.45 Rear Axle Ratio (8.5 in. Ring Gear)
GT7 - 3.33 rear axle ratio
GU2 - 2.73 Rear Axle Ratio
im not exactly sure which gears go with which transmition. im preatty new to corvettes but im trying to learn. id like to know how they rate
thanks
Richard
GHO - 3.54 axle ratio
GM1 - 2.59 Rear Axle Ratio
GM3 - 3.45 Rear Axle Ratio (8.5 in. Ring Gear)
GT7 - 3.33 rear axle ratio
GU2 - 2.73 Rear Axle Ratio
im not exactly sure which gears go with which transmition. im preatty new to corvettes but im trying to learn. id like to know how they rate
thanks
Richard
2.59 was the standard rear on all automatics. 3.07 was the performance rear offered with autos.
I think the 3.54 was used in 1984 and again with the ZR1's of 1990 -1995 but I'm not sure.
I don't think the 3.33 or the 2.79 was used in Corvettes.
Team Owner
Joined: Sep 2001
Posts: 62,153
Likes: 1,731
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
3.54 was an option in some early years even after 3.45 became standard.
3.45 was all that was offered for the 96 manual though, and most would tell you its not enough for that engine. LT's require alot of gear to realize their full potential, so 4.10's would probably be a better choice, and it would give a more useful 6th gear.
3.45 was all that was offered for the 96 manual though, and most would tell you its not enough for that engine. LT's require alot of gear to realize their full potential, so 4.10's would probably be a better choice, and it would give a more useful 6th gear.
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Race Director
Joined: Dec 2003
Posts: 11,913
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From: Sin City
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13
Hmm, if ya are considering changing gears for your LT4/6spd then I think ya would be very happy in the aftermarket 3.73-4.10 range.
Otherwise 3.45's won't do much for ya
This assumes you are looking at acceleration over economy of course
Otherwise 3.45's won't do much for ya
This assumes you are looking at acceleration over economy of course
Drifting
Joined: Feb 2004
Posts: 1,277
Likes: 1
From: Santa Maria CA
i believe the 3.33's were a rare option. a friend i know locally and someone who's a member of THIS forum has an 89' M6 with the 3.33's.
84's had an option of 3.31's and it was only offered in a D36 rearend even if it was a manual car. no D44 in 84 models from the factory.
84's had an option of 3.31's and it was only offered in a D36 rearend even if it was a manual car. no D44 in 84 models from the factory.
