The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Alternator-Starter-Junction Block Wiring 84 K30

**kwmech** · 03-15-2021, 03:12 PM

Eliminate the 14ga wire going to the starter from the junction block. Connect the 16ga wire going to the starter from the fuse block to the junction block. The only 12v you need down there is the battery cable. The batt cable from the Alt should be at least 10ga or preferred 8ga now-a days and goes directly to the battery, no need to connect it to the junction block. Eliminate the splice from there and connect that to the junction block also.

Battery to junction block should be 12ga with a fusible link

03-15-2021, 03:12 PM	#6
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,398	Re: Alternator-Starter-Junction Block Wiring 84 K30 Eliminate the 14ga wire going to the starter from the junction block. Connect the 16ga wire going to the starter from the fuse block to the junction block. The only 12v you need down there is the battery cable. The batt cable from the Alt should be at least 10ga or preferred 8ga now-a days and goes directly to the battery, no need to connect it to the junction block. Eliminate the splice from there and connect that to the junction block also. Battery to junction block should be 12ga with a fusible link Last edited by kwmech; 03-15-2021 at 03:32 PM.