SOLD my 1969 SS396 300 Deluxe Post Sedan

[Postsedan]

[ QUOTE ]
Basically I am changing the 4 speed gear ratio from: 2.20 / 1.64 / 1.28 / 1.00

to: 2.52 / 1.88 / 1.46 / 1.00

It will be a lot better on the street and out of the hole at the strip.

Plus the gears are made of stronger material than a typical M20 and they are machined at a 20 degree helix angle on the gearset as opposed to a 30 degree angle.

If my math is correct it will make my 3.73 rear gears feel like 4.26 in 1st changing from a 2.20 to a 2.52 first gear.

[/ QUOTE ]

You can also upgrade to the very strong, "Italian Gears"

Dan

[Smokey]

Will the Italian Gears shell on 3rd too? I heard of 2 people that did but didn't know if it was BS.

[69 Post Sedan]

[ QUOTE ]
Will the Italian Gears shell on 3rd too? I heard of 2 people that did but didn't know if it was BS.

[/ QUOTE ]

I have done a little research on the M222W gears and have heard that they are supposed to be good up to 600hp and that 1st gear is the weak point.

I guess we'll find out!

[Smokey]

The source that told me was a tranny line tech at the local Chevy dealer for the last 31 or 32 years. He does about 10 muncies a year yet for local friends so I kinda trust what he says.

What he tried to tell me is that he personally popped a few from what he told me in his with a semi stock LS7 crate motor that he bought back in the 70s with 411s. He was telling me it didn't like powershifting and I don't remember if it was from 2-3 or 3-4.

[69 Post Sedan]

Look what came today!

[Postsedan]

Dan

[Salvatore]

Lookin good Kurt!

[69 Post Sedan]

[ QUOTE ]
You can also upgrade to the very strong, "Italian Gears"

Dan

[/ QUOTE ]

They are the Italian gears made by Maserio.