Differential Ratio
Thread Starter
Melting Slicks
Joined: Apr 2023
Posts: 2,851
Likes: 1,653
From: Poplar Bluff MO
Thread Starter
Melting Slicks
Joined: Apr 2023
Posts: 2,851
Likes: 1,653
From: Poplar Bluff MO
I did find this page that had this info:
1982 Corvette Axle Ratios
Code Ratio Application
OA 2.72 Standard Wheels
OF 2.87 Aluminum Wheels
I have the Rally Wheels which I assume is standard. So if this is correct why would the aluminum wheels have a different ratio? Did they come with different size tires?
I found a 77 with aluminum wheels I'm trying to get the wheels from... I assume they fit?
JT
1982 Corvette Axle Ratios
Code Ratio Application
OA 2.72 Standard Wheels
OF 2.87 Aluminum Wheels
I have the Rally Wheels which I assume is standard. So if this is correct why would the aluminum wheels have a different ratio? Did they come with different size tires?
I found a 77 with aluminum wheels I'm trying to get the wheels from... I assume they fit?
JT
Melting Slicks
Joined: Oct 2003
Posts: 2,204
Likes: 852
From: Chapel Hill NC
2025 c3 ('68-'73) of the Year Finalist - Unmodified
2025 C4 of the Year Finalist - Unmodified
2025 C8 Stingray of the Year Finalist - Unmodified
You can go by the differential code or you can jack up the rear end and count crankshaft revolutions per wheel rotation. Several of my cars over the years had the rear end ratio changed by POs, unbeknownst to me.
Thread Starter
Melting Slicks
Joined: Apr 2023
Posts: 2,851
Likes: 1,653
From: Poplar Bluff MO
JT
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
I did find this page that had this info:
1982 Corvette Axle Ratios
Code Ratio Application
OA 2.72 Standard Wheels
OF 2.87 Aluminum Wheels
I have the Rally Wheels which I assume is standard. So if this is correct why would the aluminum wheels have a different ratio? Did they come with different size tires?
I found a 77 with aluminum wheels I'm trying to get the wheels from... I assume they fit?
JT
1982 Corvette Axle Ratios
Code Ratio Application
OA 2.72 Standard Wheels
OF 2.87 Aluminum Wheels
I have the Rally Wheels which I assume is standard. So if this is correct why would the aluminum wheels have a different ratio? Did they come with different size tires?
I found a 77 with aluminum wheels I'm trying to get the wheels from... I assume they fit?
JT
