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Not necessarily electrical in nature but concerning the turn signal switch itself. I do a bunch of events every year that involve interfacing with the public like "Touch-a-Truck", Veterans Day, and other veteran support activities that have us opening up the trucks to the public to enjoy and...

The negative and positive battery terminal clamps are different sizes and plenty of people don't realize that. Putting the wrong clamp on the wrong terminal leads to poor contact and excessive draw thru a small area. This is what causes hot spots and burning. The positive terminal is the...

Swabie, What transmission are you looking for gear indicators for? 3L80, 3L80 with Park, or 4L80?

I have several of the Daniels crimp tools and they work well on the military connectors. The Douglas tools were more commonly found in military wiring kits but are a much cheaper quality tool than the Daniels. For years now I've been using Buchanan tools, they work just as well as the Daniels...

There's no such thing as a free ride when it comes to HMMWVs. You have to accept the fact that EVERYTHING is expensive and nothing is going to get cheaper as we go down the line.

Even at it's peak Radio Shack would have let you down. A guy like you would have hit up Canal St 20 years ago but that's long gone. I've always had good luck with DigiKey and Mouser as my parts suppliers if I couldn't get them locally but Silicon Valley used to be a hot spot, now it's on the...

I have been running an RT-1439 in my M996A1 ambulance for years now and recently decided to update to a PRC-138. I didn't want to outright replace the 1439 and and didn't want to add another mount because of space considerations and reasoned I could come up with a way to mount the 138 into the...

There aren't any relays in the system. The flasher unit feeds the turn signal directly and it sends out the pulsing signal to the appropriate lamps. This sounds like a bad turn signal switch. Don't buy bad ones in the hope of making 1 good one out of them. There are probably 4 different...

Neither radio is type certified for use in the US.

Hopefully you didn't replace your old box with one of the LAU boxes. They can be identified by the fact that they have a second cable in the engine compartment that connects to the glow plugs. These boxes always had problems such as run-on cranking and random cranking. Fires weren't unknown...

Your assistance is greatly appreciated.

If the turn signal is not grounded to the vehicle the turn signal indicator light won't light.

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I've got a couple of C pillars that I've been trying to sell for years but the shipping is prohibitively expensive. I'm in San Jose if you want to come down and pick one up. $100 for a new old stock C pillar.

In hot climates it makes sense to operate with either the fan solenoid or the TDR unplugged to keep things cool. In moderate climates leaving the fan operating continuously will cause the thermostat to cycle to try to maintain engine temperature and as long as the thermostat is good you...

The master light switch only needs to be in service-drive for the brake and turn signals to operate.

If your fan is cycling on and off at 220 degrees you've got something bad in the cooling system. The fan should come on around 220-230 but shouldn't turn off until the engine is down around 180 degrees. Unplugging the fan to keep it running is a stop-gap measure that will get you thru the...

I've opened up several of these switches to try to make functional units out of partials and found that while they all look similar on the outside their internals and the way the lever shafts seal to the case can be very different.

Just a quick note for the non-radio types that might read this. Fred did a great job on describing how to modify these antennas for use with a CB radio and any time you intend on transmitting antenna matching is important. This is done to get the maximum power from your transmitter out into...

These remotes are made in both holding and momentary contact configurations and the momentary is the one you really want. Forgetting to hit the button twice or having someone unfamiliar with your truck could end up causing problems. It might just trip a breaker but overrunning the motor could...