Re: [StockSSDragRacing] 4 speed info needed

 

Bruce I would venture to say it's a M21 close ratio(2.20 low gear) . I
have an M21 intermediate (2.52) laying on my garage floor and it has two
circles on the input shaft. I was always told close ratios have one circle
and intermidiates have two. I also think that the M22 ("rock crusher") has
more splines on the input shaft. Wonder what the switch is on the shift
lever is for? Seems like an odd place for a neutral safety switch! Pretty
valuable find. Ken A
----- Original Message -----
From: "Bruce Stewart" <BSTEWART2@sc.rr.com>
To: <StockSSDragRacing@yahoogroups.com>
Sent: Saturday, March 27, 2010 1:40 PM
Subject: [StockSSDragRacing] 4 speed info needed

> Any 4 speed experts out there? I got this on a trade and I don't know
> any thing about it. Can you tell by what numbers I posted on what
> year it came out of or if it's a M-20 or 21? I was told it came from
> a 69 Nova with a big block. Any help would be great. TIA Bruce
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