IMPORTANT NOTE: Ring & Pinion ratios from 3.23 - 4.56 are designed for use with a "3 series" carrier. If you intend to install these ratios with a "2 series" carrier, you need to use the ring gear spacer listed below.
Note: Circle track racing applications require a minimum of 4 qts. of rear end lube. Using less than this amount will lead to immediate pinion bearing failure.
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