Iron Diff Compatibility Question
Thread Starter
Pro
Joined: Feb 2012
Posts: 577
Likes: 6
Iron Diff Compatibility Question
I'm sorry if this has been covered to death I did not find answers to my specific questions in my searches.
Will an iron diff from a '77 bolt to the frame of a '74?
Both cars were factory TH350 cars, both 3.08 cars, and there's going to be a mono spring change using the '77 diff as the year.
Thanks.
Will an iron diff from a '77 bolt to the frame of a '74?
Both cars were factory TH350 cars, both 3.08 cars, and there's going to be a mono spring change using the '77 diff as the year.
Thanks.
Thread Starter
Pro
Joined: Feb 2012
Posts: 577
Likes: 6
Were there different cover designs? Not that it matters, because the mono spring was bought for a '77.
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,212
Likes: 9,350
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Pretty sure you can use a diff from 64 to 77. Apparently there is strength differences if you race or manhandle them too much. The 64 to 66 had week clutch housing, and as I understand it the 69 to 70 something had a stronger case. There’s some threads on it if you want to get deep in the weeds. You’ll be fine
Le Mans Master
Joined: Sep 2003
Posts: 8,812
Likes: 2,029
From: eastern NC
Mark, just do a search on the C3 TECH/PERFORMANCE Forum for GTR1999. You will find the answer to just about any question you might have regarding the rear suspension of the C2-C3 Corvettes. You may need to do a bit of reading to find the answer to a specific question, but you'll learn a lot along the way.
Gary Ramadi's (GTR1999) answers are filled with technical data and spec's so the reading is always informative. You can also send him a PM if you have difficulty finding a specific answer or are confused by a post. He's exceptionally detailed and knowledgeable regarding these cars and a great example of what makes the Corvette Forum such a terrific place to visit.
Here's just one post I found with some great info regarding the '77 rear differential in an answer Gary provided to a members question... https://www.corvetteforum.com/forums...d-rebuild.html
Good luck... GUSTO
Gary Ramadi's (GTR1999) answers are filled with technical data and spec's so the reading is always informative. You can also send him a PM if you have difficulty finding a specific answer or are confused by a post. He's exceptionally detailed and knowledgeable regarding these cars and a great example of what makes the Corvette Forum such a terrific place to visit.
Here's just one post I found with some great info regarding the '77 rear differential in an answer Gary provided to a members question... https://www.corvetteforum.com/forums...d-rebuild.html
Good luck... GUSTO
Last edited by GUSTO14; Jul 16, 2020 at 10:51 AM.
