What is the Big Three (Big 3) upgrade?
The Big Three upgrade, simply put, is upgrading the main three electrical charging wires in a vehicle's electrical system. These wires are the power wire from the alternator to the battery positive, the engine block to a ground, and the battery negative to a ground.
Why should I upgrade the Big Three?
Ok, so I have been working on this for the past three days. Im putting 4 hours a day into it until im done. I have been having the hardest time finding a dash bezel so when I finally got one I decided to make it just how I wanted. Im using abs plastic from an old POS Rozzi body kit to fill all the air vents, the air bag switch, and the spot where the ac controls were.
This article will address the installation of one of the easiest door popper kits on the market: the AVS #SDK11. The unit is 100% bolt-on for 94+ S-series trucks and 95+ S-series SUVs. Once the solenoid is mounted, most of the wiring is plug and play, with just the neccessary contacts such as power/ground needing to be spliced into the truck.
First remove the visors from the truck.
You will need a T-15 torque wrench ( the star shaped one)
There are 3 screws holding the visor on. Once they are removed the visor will drop.
There is a small plug tucked inside the hole going into the roof.
This applies to all 95 and up trucks
Tools and Parts required:
GM Hazard switch repair Kit part # 15174447
Needle Nose Pliers
The hazard Switch kit will come with a small tube of dialectric grease. Smear this on the entire thing before installation.
For a while I had some general colored bulbs in my cluster, you know, the crappy APC ones. The problem with these incandecent bulbs is that over time they fade...(In the case of the blue one, they faded to green, and the reds faded to pink).... So I finally got off my arse and decided to upgrade my cluster to LED's. Yes, I know, some of you say..."Why don't you go with EL Glow gauges?" Well, unfortunatly, we with the 94-97 clusters have a hard time getting the right gauges for that. (Some of you know what I'm talking about). Besides, what I ended up doing was cheaper and looks pretty decent. This how-to also applies to 98+ clusters as well with the exception of the gear indicator. So let us begin...
Comparison of both seats (sunfire seat on left):
Underside, seat track still on s10 seat:
I did the conversion using the stock power regulators from another s-series truck. Some people just buy an aftermarket kit like spal or autoloc , but I didnt want the manual crank piece sticking out of my door panel (aftermarket kits come with a cover), and I think that theres less things to go wrong with the the stock regulators than the aftermarket kits. I took some pictures and I hope they are usefull for you if you are going to do the same conversion.