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Old 05-03-2017, 02:48 PM   #2
dennislbrooks
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Join Date: Feb 2004
Location: Williamsburg, Ohio
Posts: 1,766
Re: 2015 Duramax - reg cab long bed -- levelling

Ok this stuff may be old news but I used the 1 inch hole in the lowering shackle - trimmed top hole - lowered rear about 1 1/4 inch. Clearances disappear if you go top hole.... Then I gave each front torque arm bolt 4 full turns. Looks like you raise about 3/8 of an inch for every 2 full turns --- total was 3/4 inch --- raised front of truck to take the weight off before adjusting. I still have about of inch bolt left.

This gave me 41 1/4 inch in the front from ground to top center of fender wells and 41 3/4 inch in the rear.

Headlights raised 2 inches on low beam. Have not adjusted them yet as I may like them better. Will see if it bothers others.

I may go 2 more turns on the front but will test drive first. I need to finish mowing before more rain tonite and tomorrow.
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1942 Chevy 1/2 ton Rod, 1959 GMC 1/2 ton Fleet Stepside, 1967 Chevy SWB K10, 1985 Corvette Coupe 4+3, 2015 Chevy Duramax reg cab 4WD W/T

Last edited by dennislbrooks; 05-03-2017 at 02:52 PM. Reason: words
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