#13

09-01-2025, 10:16 AM

scott70

Ultimate Warrior

Join Date: May 2002

Location: maine

Posts: 2,732

Quote:

Originally Posted by Scarebird

I always thought the M21/22 was a weird dog. 2.20 first? no thanks!

It seems like Autogear is no longer around with their M22Z (2.98 first)?

Until the 454/455 came along wasn’t it recommended /required from Gm that it was 3.90 and up for the m21 trans?

__________________
72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007
(cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD
1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.45 @ 88.1 mph on slippery street tires.Bad 2.19 60ft.Owned since 86'

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