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I didn't go to a website I went to Google and typed in g30 box truck. Didn't try real hard and those popped up. Now realistically towing a trailer everyday,especially one that weighs as much as your truck is going to get old fast,I do it occasionally and not if it's raining,or snowing. And as for pulling a 5000lb trailer daily,I'd much rather use a C or G 30. Stronger everything and setup from the factory to pull the kind of weight you are talking about. If I was dead set on pulling that kind of weight daily I'd want a minimum of 3.73 gears ,and I'd make sure I had all the best brake components I could find,best,not cheapest. One more thing who decided your carburetor was the problem? That's always everyone's first go to,but have you checked engine Vacuum? If you have even just a decent size vacuum leak espe0cially with a properly set up q jet, or properly set up holley it's going to go pig rich,with a low vacuum signal the carburetor thinks you're floored so it' adds gas like you are floored.Thank you to every one that has commented, lots of great info here.
Checked my SPID, (should have done that before posting) Yes my transmission is a 4 speed automatic, and my gear ratio is 2.73
@Grit dog You are correct, I have just repainted it, and that picture was just after putting the bed back on. so it didn't have it's bumpers on yet. I fabricated a hitch for it, so theoretically I could try it, BUT, right now I am having trouble with my quadrajet. on my first test drive after reassembling the whole thing, it would drive, but had no power, I literally had my foot to the floor, and could just barely make it up a small hill, belching black smoke. I think the choke was not opening? Any ways, I want to put a new carb in it, but how much more I spend on it depends on if it is capable of doing what I want it to.
And you are also right that I am a welder not a mechanic, I have done all the work on it myself, (apart from the flushing of the diff. and the trans.) but I just sort of learn about a topic as I go. And yes I foresee hundreds and hundreds of miles towing. looking for a lightly used late model truck is sort of my backup plan.
Here is where I am at;
I have already built my welding trailer, and need a reliable truck to haul it with. I decided to go with a trailer rig because it keeps all my equipment enclosed out of the elements, and allows me to have a lot more equipment on me than a service truck. I never thought of a box truck, wish I had now, but I have already built the trailer. I really don't mind pulling a trailer just need a vehicle to do so. So any way the truck has several mechanical issues that I have been addressing over the last few months. the original paint was peeling off all over, so I stripped it down and repainted at the same time. My grandmother would always run the cheapest fuel, and then it sat for about 5 years without running, so, rust in the fuel tanks, gunk in the carb.
I rebuilt the carb, and replaced both fuel tanks and all the fuel lines. like I said now she will run, but not well, I think it is just the Carb but I don't know for sure. She only has about 60k miles on her, so there shouldn't be to much wear?
@Ricko1966 Thank you for the idea of a box truck, that might prove to be the answer, what website did you pull those off? I have only looked on Craig's list. I assume one of those would pull a trailer with no problem?
I have had the transmission flushed, but if I do it again I will certainly add a pan with a drain plug.