I install the bar after the suspension has settled and all hardware is torqued. Install the bar without shims and run down the nuts to remove the slack . Install the shims to fill the gap between the bar ends and the control arms. Evenly if you like or to center the bar.
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Ed
1968 GTO (Thanks Mom)
2006 Silverado
2007 Cadillac SRX
2015 Chevy Express
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