Djtorello Posted February 8, 2022 Share Posted February 8, 2022 I did a forum search, and didn't find what i was looking for, So i guess I'll just ask. Has anyone done a big3 upgrade of these trucks? I've noticed piss poor quality of the oe wiring, and weird routing as far as i've noticed. I was checking the documents on the ground cables, and noted the battery ground on my '82 at being either 59 or 64 inches long.. That's crazy. Now i already changed the battery ground, with a 4gauge wire about 14 inches long, to the chassis, and a battery ground to engine ground point, 2/0 gauge about 22 inches long. It has helped with starting and dimming of the lights. Would upgrading the power cables, and starter cables result in a good result as well? Edit to add a picture. Btw, the power to solenoid is 4 gauge, and the starter cable appears to be 2 gauge. while the alternator charge wire is something tiny, like 16 or 14 gauge. Link to comment Share on other sites More sharing options...
Rembrant Posted February 8, 2022 Share Posted February 8, 2022 I think one of the best (smartest?) upgrades you can do to an old Bullnose truck is to replace all the ground cables, and clean/lube/oil every bolt and connection to keep the rust at bay. Link to comment Share on other sites More sharing options...
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