2013 Sierra 6.2 4x4 thread

Wats some good under cartage spray?


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Like to clean underneath such as Adams undercarriage spray?....or like rock guard type stuff. etc?

Chemical Guys Barebones

Saw where a it runs more/doesn't apply as nice as the Adams in a blind test done by someone on GMFS. Never tried either, plan on trying the Adams eventually
 
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Yeah and not because of that, trying to decide if I want to get the brackets pc'ed satin black or transparent blue.
 
I have a serious question. Just trying to find out some info, but why do some companies sell tapered blocks and some are just flat? Ik the reason for tapered blocks but are they really necessary? I'm lookin at getting the 5" Rcx anti-axle wrap block and iirc that one is flat... Can someone fill me in? Lol


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