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cparman · 04-18-2010, 11:16 AM

I did an M&H engine compartment harness, and forward lamp harness in about a half a day. If you have not done this kind of work before, like someone else said take you time. I might suggest that as you remove the old harness, use masking tape and label each connector IE headlamp switch, wiper switch etc. DO NOT THROW THE OLD HARNESS AWAY. Get the old harness on the floor, and kind of lay the new one next to it. Check the connectors, and get a kind of game plan as to where you are going to start to install the new wiring. M&H and AAW are great companies, and their harness fit properly. If you Blazer is a body shell, and in the process of installing the wiring you will be reinstalling all of the other pieces it will take a while. I replaced an underdash harness, and all of the wiring firewall forward in a 68 C-10, for a customer and it took a couple of days.

04-18-2010, 11:16 AM	#9
cparman sharp as a marble Join Date: Jan 2007 Location: atlantic beach,florida Posts: 1,082	Re: rewiring a blazer... need advice PLEASE I did an M&H engine compartment harness, and forward lamp harness in about a half a day. If you have not done this kind of work before, like someone else said take you time. I might suggest that as you remove the old harness, use masking tape and label each connector IE headlamp switch, wiper switch etc. DO NOT THROW THE OLD HARNESS AWAY. Get the old harness on the floor, and kind of lay the new one next to it. Check the connectors, and get a kind of game plan as to where you are going to start to install the new wiring. M&H and AAW are great companies, and their harness fit properly. If you Blazer is a body shell, and in the process of installing the wiring you will be reinstalling all of the other pieces it will take a while. I replaced an underdash harness, and all of the wiring firewall forward in a 68 C-10, for a customer and it took a couple of days.