M20,M21,or M22? - Page 2

**MosportGreen66** · #11 04-13-2010, 05:45 PM

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Call Crash.

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end of thread!

Eric Davidson is the man for the Muncie!

**69 Post Sedan** · #12 04-14-2010, 01:41 AM

My M22 Italian gears did whine but not very loud.

I have done some research on the M22W gears and they are supposed to handle 600HP...I guess I'll find out when I use them!

Groucho · #13 04-14-2010, 10:39 PM

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I'm gonna be looking for a new trans for the Nova.The old one is toast,broken ear on the case,used up gears and syncros.More to rebuild it right than to buy new with the good stuff in it.The trans that was in it I beleave is a M20 with 2 rings on the input.Wouldn't mind a M22 with a supercase.That would do everything that I could throw at it. Any advise is appreciated.

Thanks in advance.

Kendall

[/ QUOTE ]I haven't read all the responses, so it may be already said. But, it depends on how much power, how hard and often you use that power, how sticky R the rear tires and what rear gears are in it. All this comes to play in how long the weaker M-20/21 will last. I like the wide, M-20 (lower gears) for most stuff around town that has less than 3.73 rear gear.

bad1racing · #14 05-07-2010, 03:36 AM

Ok so wide or close ratio?The Nova is street driven,375hp,headers,3.55 gears.The trans isn't numbers matching to the car so it's not that big of a deal about saving the old one.Just some spirited driving as every now and then I like to clean out the pipes if you know what I mean.

Kendall

#15 05-07-2010, 03:40 AM

My take would be a wide ratio. If it was mine I'd be taking a long hard look at the iron case, nickel gear Super T-10's built by SK Speed (NY).

Wayne

**markjohnson** · #16 05-07-2010, 07:35 AM

With your 3.55 rear gears, it's an absolute no-brainer to go with the 2.5 Wide Ratio Muncie. It'll make leaving stop signs quite a bit more fun. It's also supposed to be worth an extra 2-Tenths on the Drag Strip if that's your thing which roughly translates into 2 car lengths. And c'mon now........we've all won or lost a street race by two car lengths before!

P.J. · #17 05-07-2010, 11:51 PM

I have 2 m22 one is from a 1970 camaro and its all original
with about 20 thousand miles on it.
the other one is an m22 also but with a new italian input shaft
and what a difference.
My m22 thats in my L78 chevelle is not orig to the car and I have the real one on the shelf.This orig Camaro trany howls just like a 747
jet flying over your head at 50 feet.The other one with italian
input shaft is no where near the same noise.
LOOOOOOVe it!!!
PJ