I just sold my 93' SR and bought a 98'Sport......Not my best day. Does anyone know of a factory ( maybe plug in is a better description )harness for towing. Ive called a couple of dealers and they don't even show one. I can get a universal but I'm not a big fan of crimping into the factory wireing.Any insight would be appreciated.

Thanks, Bill

Nope, Sorry! Nothing in a plug in for any Sport, sorry. You will need the converter. The problem is that the truck uses two separate bulbs, one for the turn and one for the stop/marker. On the trailer it's all in one bulb. It's really easy, and I wouldn't worry at all about tapping the truck's wiring. Make your connections with Scotch-lock connectors inside the taillight cavity. That way, you'll have plenty of room, and the connections will be out of the weather. On some vehicles, we need to upgrade the flasher to a heavy duty one to keep it from blinking too fast, and there is a note in the instructions-
Do not exceed 2.1 amps per stop/turn output (equivalent of one trailer stop/turn bulb). Applications of more than 2.1 amps require a power converter.
In other words, if you have a pretty normal trailer, you'll be fine. If it has electric brakes or multiple lights tapped off of the main light circuits, you need more.
The basic converters usually run around $16, and will get you a "4 flat" plug. If that's all you need, you're done, if you need a 7 way, or 6 way, you can add one that will plug into that 4 flat. The outlet will then just bolt up under the bumper wherever you can get it. Those run about $25.
FWIW- Your '93 would be the same way if it didn't have the factory tow package. Hoppy shows a "coming in spring '08" plug-in for that one.

It looks like an obsolete # thru NAPA, but it's still available at a couple DC's and the Balkamp warehouse in SLC. It's a 7551483. Just give that number to your local NAPA and have them order THAT number. There is a supercession to that number which is the hack-job set-up, which you don't want. The number I'm giving you is the plug-and-play version.

Moving slightly off the original topic but still related, does anyone have any recommendations for a better quality converter box? I'm on my third one in 4 years & I'm getting a little tired of having to replace them when they fail. The trailer place I bought them from says it's not unusual for them to fail, which is why they're only $15. and have a 3 month warranty. I'd gladly pay $30 for one that will last if I could find one, but I haven't been able to locate anything.

What's the converter for? I just had my Montero wired for trailer lights and they tapped into the tail light wiring harness underneath. They had to pull the wires out of the loom so I'm going to re-wrap the exposed wires to protect from weather. Anyway, I'm using the simple flat 4 magnetic base trailer lights (like tow trucks use). I noticed my blinkers are a little slower than usual and I can hear a couple of clicks from the flasher relay before the blinkers get going.
Thanks,
Jim
Tulsa
'89 two door v6 auto

Your truck doesn't need the converter, so you have nothing to worry about. 2 doors have a single bulb setup.

I was wondering the same. So a converter is needed to match up when dealing with separate single bulbs versus single multi-filament bulbs?

If by "converter box" you mean the type that is powered separately from the battery and the signals for actuating the trailer lights are taken from the lights, then that's the type I perfer and have installed on my truck. It has been in operation now for about 10 years with no failure. Using this type takes the load away from the light wiring and flasher unit, but you'll still need to tap into the light wiring.