I just bought a 65 chevlle with a 12 bolt posi and 5.57 gears and am wondering if
it is a 4 series carrier what is the highest (lower numerically) gear i can run in this carrier no i dont have the casting #'s right now and it's in storage
I had a 64 with the "punkin" type diff. with a 3;73 and had to use a spacer to get to 4;11 so I'd guess you're restricted to a 4;11 unless you can find a special thin ring gear. Could be wrong, only messed with this one in that regard. tom
Drptop70: I use an Auburn Pro 4 series carrier and the lowest numerical gear available (thru Jeg's and Summit - Richmond gears) is the 3.73 ratio. I am SOL if I want to go any lower with a four series - 3.73 is the limit for my set-up and I 'think' is also the limit for most other 4 series posi's.
Wally: What does that sound like when it grenades at 8,500 rpm's!
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