I haven't turned but brother in law is chasing an M21 and silly me said I'd find him one, but not knowing anything about holden bits I don't know what I'm looking at. Can anyone tell me how to spot the difference between an M21 and the weaker and cheaper M20?
M21 has a 2.54 ratio first gear. M20 has a 3.05 ratio first gear. Do a ratio check will tell. They also have ID grooves on the input shaft, M21 should have two grooves, but this is not a given.
Please don't say the words "Decent" and "aussie four speed" in the same sentence. It is offensive!
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Ford Forums
1.4M posts
115.4K members
Since 1999
Ford Forum is a community to discuss all things Ford. Check out our discussions on the Ford Escape, Mustang, Edge, F-150, Raptor, Explorer, Focus, Fusion, Fiesta and more!