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#1
11-27-2018, 12:40 PM
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Dang, Lost Some Info Re: 4 Speed Trans...
Need a little help guys.
Somewhere, buried in my garage is the original Pontiac info regarding which rear end ratios determined which transmission a car came with. I just cannot seem to locate it. I believe the change up between the wide ratio M20 and the close ratio M21 was somewhere between the 3.36:1 and the 3.90:1 rear end. Does anyone have this info handy that they could share with me? Thanks, Greg |
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#2
11-27-2018, 01:19 PM
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Usually M21-22 came with a 3.90 or lower.M20 could be ordered with pretty much any.Do you have the PHS on the car,it will tell you how it was made in regards to trans and rear gear.Tom
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#3
11-27-2018, 01:37 PM
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Thanks Tom, this is not for my Firebird. just some general info I was going over with a few of the guys. I know I have it documented somewhere but just can't put my hands on it right now.
Greg |
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