Kind of a rule of thumb is to make them the length from center of your axle tube to where your drive shaft mates to your trans. If you have a carrier bearing then make them the length from axle to carrier bearing.
Just so you know there are a few ways people build them but really one one way to where you actually get rid of axle hop AND not compromise suspension quality.
RIZE has a very nice set but expensive. But that's they way to do it in order for everything to work. You can still do it yourself if your on a budget and have the tools to do it though. Might not look a blingy though. :thumbup:
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