Part 9 We make LED dome light from scratch, add a 3rd brake light, and reconfigure the exhaust…again.
First up, a home made DIY LED Domelight. The old one had multiple issues. 1. it didn’t work and 2. it was SILICONED into the truck…really?
I bought a 10 pack of these bad boys in the picture below and keep them around the shop. They are super cheap ~$3/each and are bright. I plan to also install 3-4 of them under the hood for side-of-the-road emergency diagnosis.
10 NEW 3/4″ CLEAR WHITE LED CLEARANCE MARKER BULLET LIGHTS
I also used some red LED bullet lights for the third brake light that I also installed while putting the dome light in. It was quite ghetto-ly held in by those little square plastic license plate screw things… so I decided to fix it right.
If you are wondering why I am going on about the above LED Bullet lights being so cheap, check out the screenshot below of the LED section in the LMC truck catalog. Their turn signals and marker lights are $40+ EACH!! Mine came out to ~$3 EACH (goes to show you, a little ingenuity can save a lot of money).
Next up, some quieter exhaust. I initially used the same exhaust that I had on the big block. Though with the smaller engine it was much quieter, there was still enough noise for it to be obnoxious inside the cab. Annoying enough, that I decided to go down to the basement and drag the 70 series that I had originally bought for this project out to have another look.
I decided that doing a Y pipe under the transmission bellhousing like normal would not work due to the extreme travel of the front driveshaft. So I decided I was going to make a Y pipe after the transfer case where there was more room. Then I came up with the idea of just having a muffler with two inputs, but as you can see in the picture above mine only has one. This is the part where we get out the grinder and welder to make our own!!
What is soapstone? Click for an article I wrote on what it is and why we DIY home fabricators use it.
After letting the paint dry for a day or two, I bolted the new exhaust system back up. It still doesn’t have a full tailpipe to the rear bumper yet, but that will have to come another day when I have more motivation.
And finally, click play on the video below to hear this beast in action!
Much quieter, but still throaty. I like it.
Stay tuned for Part 10… the FINAL part. I will get some outside pictures and maybe some videos.
Ol’ Blue LS Swap LINK INDEX:
- Part 1: Removal of the 496 BB and wire harness
- Part 2: Initial install of LS motor and adapting to TH400
- Part 3: Custom motor mounts and EGR blockoff plates
- Part 4: Power steering adapter and LS ECM installation
- Part 5: LS manifold V-band and exhaust installation
- Part 6: Coolant/fuel system installation – First Start!
- Part 7: Throttle Cable/Intake/DIY ECM mount
- Part 8: Painless wire harness install and LED conversion
- Part 9: Reconfigure the exhaust…again and finish LED’s