What are the diffenent sizes and gear ratios available on this model year truck. thanks
97 z71 k1500 rear diff
Oct 12, 2006
1 Replies
It could be a GU6 (3.42) and GT4 (3.73) or a GT5 (4.10). You can find a complete list of GM axle ratio codes that I put together at the link below. (it covers basically all GM vehicals)
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----------------- TheSnoMan.com
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