I need diagram of 86 Chevy K10 Fuse Box - Fixya May 24, 2011I need diagram of 86 Chevy K10 Fuse Box - K2500 Chevrolet Cars & Trucks. Posted by jthclh on May 24, 2011. Haynes Chevy and Gmc pick-ups manual 1967 thru 1987) If you have any othe questions I have the manual, I have an 86 k10 4x4 w/350. Jan 03, 2009 | 1988 Chevrolet Camaro. SOLVED: Which fuse is for the horn on a 86 k10 - Fixya Jun 13, 2009Which fuse is for the horn on a 86 k10 - 1986 Chevrolet Chevy. Posted by mori78 on Jun 13, 2009. Want Answer 0. Clicking this will make more experts see the question and we will remind you when it gets answered. It is in the middle of the Fuse box. 86 -88 should have the same fuse box. ( If you reference the Chilton book they say the fuse 1986 CHEVROLET K10 Parts and Accessories - Free Shipping Parts and Accessories and get Free Shipping on Orders Over $99 at Summit Racing!