LMC Truck Light Install On Chevrolet C-10 Truck - Bright Lights, Big C10 - Tech

To install the new headlight we removed the rubber seal from its back, and inserted the bulb (marked TOP) into the light bucket and replaced the headlight-retaining ring.

With the Euro headlight installed the rubber seal was pushed on the backside of the headlight bucket.

The LMC Truck headlight relay wiring harness comes complete with the terminals clearly tagged for where they need to be connected. The 30-amp relays are for high and low beam.

It is best to mount the relays as close to the battery as possible. We used a tie-wrap to join the relays together.

Installation of LMC Truck's headlight relay harness requires drilling only two holes for the relays. Everything else is plug 'n' play, and unplug 'n' replay if want to use it in another truck.

Here's how the relays appeared after mounting. Note we left the tie-wrap in place.

We started the harness install by connecting the two plugs at the relays. It didn't seem to matter what one went where.

In order to reuse the two stock headlight ground locations we needed to replace the LMC Truck harnesses' ground terminals with larger hooped terminals that would fit over the stock ground bolts.

The relay harness comes with two red positive leads that must be connected to the battery. In order to fit over the positive post's 3/8-inch bolt we spliced the two positive leads into a single terminal with a 3/8-inch opening (hoop).