Installation Help

When installing the traction bars, should the rear wheels be off the ground with rear leafs at full sag or wheels on the ground and leaf springs supporting the weight at a natural stance?
It is recommended when installing our traction bars.
Does it only come with one traction bar or with both of them? I think there was some slight confusion on that.
Yes it does
Will this fit 2002 2500hd, and why Wouldn't it
I purchased the hsp valve covers for my lly Duramax but did I need to buy the breather kit, or can I run the valve covers without it
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