gears
Thread Starter
Instructor
Joined: May 2006
Posts: 131
Likes: 0
From: seattle wa
gears
ok i just bought a 77 the previous owner said engine has aprox 10,000 miles and 350HP I'm not seeing it what are the stock gears in the 77also what would a good gear be to run mostly around town but i still drive hwy its a automatic and how big of a job is it to change out gears your opions please
Drifting
Joined: Apr 2006
Posts: 1,911
Likes: 2
From: gold coast queensland
both the 77 manual and auto had the 3.36 to 1 . i think if you have a torquey motor those gears are fine for a decent launch and suitable on the hiway. if you feel they just arent giving you enogh punch go to 3.55 and 3.73 at the most since you do hiway driving. its quite a simple and cheap swap for a diff shop but not for a first timer.
Le Mans Master
Joined: May 2002
Posts: 5,084
Likes: 786
From: Lebanon Township New Jersey
Most likely your rear gear is 3.08. Changing the ring and pinion isn't simple or cheap. After you remove the diff from the car, specialized tools are required and a lot of experience to get the gears set up correctly.
Drifting
Joined: Apr 2008
Posts: 1,992
Likes: 56
From: Antioch IL
I agree, you need to know what you are doing I sent mine out and had a 3:54 put in. Good time to do a complete rebuild change seals and clutch pack etc....
PS you should have a 3:36 in there now.
PS you should have a 3:36 in there now.
Team Owner
Joined: Jun 2000
Posts: 38,923
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From: Southbound
Cruise-In II Veteran
Pro
Joined: Sep 2006
Posts: 547
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From: Carlstadt NJ
both the 77 manual and auto had the 3.36 to 1 . i think if you have a torquey motor those gears are fine for a decent launch and suitable on the hiway. if you feel they just arent giving you enogh punch go to 3.55 and 3.73 at the most since you do hiway driving. its quite a simple and cheap swap for a diff shop but not for a first timer.
Code Ratio
OA 3.08
OD 3.36
LR 3.36
OB 3.55
OC 3.70
