markwilliam1 Posted April 11, 2017 Share Posted April 11, 2017 (edited) My 86 Granville came with large mud flaps behind the dually's but were dry rotted so they were removed. I'm thinking of replacing them but wondering if that would reduce MPG 's or performance due to increased drag. Any thoughts? Any benefits to having them? Edited April 11, 2017 by markwilliam1 error Quote Link to comment Share on other sites More sharing options...
Bob C Posted April 13, 2017 Share Posted April 13, 2017 Many states have mud flap requirements. Â Check out this site to see if EW RW http://www.minimania.com/pdfile/Mud_Flap_Laws_NETA.pdf Quote Link to comment Share on other sites More sharing options...
linda s Posted April 13, 2017 Share Posted April 13, 2017 Well it says California requires them but I guess nobody ever told the cops. All the mega lifted giant completely exposed tires on 4X4's here I don't think I've ever seen one with mud flaps. Big rigs only. I remember being behind a newer Volvo once with all the usual bumpers and standard car stuff on it but the design of the car took the rain and focused it into one huge spray that hit me right on my windshield. Like a rear firehose. I drive an Explorer too so it was really throwing it up. Doesn't it rain in Sweden or do they only sell those cars here. Linda S Quote Link to comment Share on other sites More sharing options...
markwilliam1 Posted April 13, 2017 Author Share Posted April 13, 2017 Do you think they would lower MPG's or power due to wind resistance? Quote Link to comment Share on other sites More sharing options...
Derek up North Posted April 13, 2017 Share Posted April 13, 2017 Compared to all the other 'things' creating aero drag, I very much doubt it. Quote Link to comment Share on other sites More sharing options...
markwilliam1 Posted April 13, 2017 Author Share Posted April 13, 2017 Well OK then. Thanks! Quote Link to comment Share on other sites More sharing options...
Lee & Joan Posted April 15, 2017 Share Posted April 15, 2017 Your rear tires have already cleared the wind path. The flaps keep some gunk off the bottom of the chassis. I like flaps. Quote Link to comment Share on other sites More sharing options...
dwaney5 Posted May 22, 2017 Share Posted May 22, 2017 Removed mine for a while and I didn't notice any negative effect on the mpg and power. Quote Link to comment Share on other sites More sharing options...
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