77 vette rear gears
Thread Starter
Heel & Toe
Joined: Jun 2006
Posts: 22
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question about 77 vette rear gears
does anyone know what gears are in a 77 vette and what gears do i need to still be able to drive it on the road but bring my time down at the drag strip
Last edited by mdtiger1; Jun 29, 2006 at 06:05 PM.
Tech Contributor
Joined: Aug 1999
Posts: 15,177
Likes: 3,995
From: Connecticut, USA
The base 4 spds had 336 and L82's had 355 or 370.
Automatics had 308.
The best gear is dependant on your eng/tranny setup. I would check to see what you have by counting the # turns on the input vs out on the diff.
The best gears for a vette are made by Toms's and they are 373 not 370. The 370 are GM, Yukon,Motive,Richmonds,etc. The 373 have been back ordered for months now.
If you're running at the track you'll want to do more then change gears too if you want it to last. At the minimum I'd set it up with a steel left cap, solid sleeve, tuned posi and HD cover.
If you find the post I have going it will show these parts in different differentials.
Good Luck
Automatics had 308.
The best gear is dependant on your eng/tranny setup. I would check to see what you have by counting the # turns on the input vs out on the diff.
The best gears for a vette are made by Toms's and they are 373 not 370. The 370 are GM, Yukon,Motive,Richmonds,etc. The 373 have been back ordered for months now.
If you're running at the track you'll want to do more then change gears too if you want it to last. At the minimum I'd set it up with a steel left cap, solid sleeve, tuned posi and HD cover.
If you find the post I have going it will show these parts in different differentials.
Good Luck
Pro
Joined: Apr 2005
Posts: 603
Likes: 2
From: Illinois, USA
Originally Posted by gtr1999
The base 4 spds had 336 and L82's had 355 or 370.
Automatics had 308.
Automatics had 308.
I have just started doing some autocrossing, and I know that gearing makes pickup a little tough. This means I need to shift to get any speed coming out of the corners. However, since most of my driving is highway, I can keep the RPMs down to about 3,000.
So, as gtr1999 stated, the right gearing is entirely dependent on what you choose to do with your car. They are changible, so you're not stuck with anything (I deliberately omitted easily -- as I think that would be foolish)
Brian.
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
Camshaft duration has an effect on how and engine feels out on the highway. A short duration L/48 camed car with 3.73 or 4.11 gears
would feel strained on the highway. the same engine with the old
30/30 Z/28 cam would feel fairly relaxed on the highway with 3.73
4.11s.
would feel strained on the highway. the same engine with the old
30/30 Z/28 cam would feel fairly relaxed on the highway with 3.73
4.11s.
Instructor
Joined: May 2006
Posts: 122
Likes: 1
From: hazlet township nj
Originally Posted by supervette2
You must be a noob. HAHA. Okay im done laughing. The gears you want are 3.70's trust me. you'll be happy. 9.9 times out of 10 they have 3.08 in them.
I agree, 3:70 are the way to go.
