I know that the 1 on the far left is the fuel relay
One is under the hood and the other is in the far left side of the dash, the drivers door must be open to gain access to it.
When going on a camping trip, many people will decide that they will want to have a more comfortable place to sleep and relax than in a tent. Those that are looking for more room and comfort can choose between getting either a RV or a pull behind camper. In most situations, getting a pull behind camper could be a better option as they provide a number of advantages when compared to RVs. One reason to purchase a pull behind camper as opposed to a RV is that they are much cheaper. When getting an RV, you will end up spending far more because you end up spending for the entire living space that comes with both a RV and camper, but will also end up paying for all of the automotive aspects of a RV that can be very expensive. Since a pull behind camper is limited to just the living space, they will cost far less than a RV. Another advantage of getting a pull behind camper compared to a RV is that they are much easier to store. While having an RV may be convenient when camping or going on a road trip, those that have them will find that they are difficult to store when not in use. Those that have their own home will find that the RV will not fit in most garages and will occupy the entire driveway, and if they live in an apartment community, they will likely have to pay extra money to store the RV when not in use. On the other hand, a camper can be easily broken down and placed into any garage, shed, or large storage space. Another important benefit of getting a camper is that they are easier to maintain. Similar to a car, a RV will need to have a lot of regular maintenance to ensure that it will continue to operate properly. With a camper, you will not have any of the same automotive repairs necessary. Instead, all repairs and maintenance will be limited to the interior living space of the camper.
I'm trying to figure that out to but so far it seems to involve pulling the rear axle
The fuel pump is located inside the fuel tank. The fuel tank must be removed to gain access to fuel pump.
Get a universal set & cut. it's far easier, otherwise you always have some that are too long/too short.
Yes, but not far or very fast. You need appropriate gearing, brakes, suspension, and vehicle weight to pull a trailer safely over any distance.
Yes it is possiable. You can buy a engine swap kit for your Blazer from Jegs.com that includes motor mounts, oil pan,exhaust with headers for around $700 bucks. Just search "engine swap" As far as passing an emissions test that's another story.
There are 2 fuse/relay centers, one under the hood on the drivers side and the other is in the far left side of the dash, the drivers door must be open to gain access.
I couldn't find any information that far back but here is a page that has 85 vehicles, pick the one closest to your vehicle and go the page that gives the mileage. http://www.fueleconomy.gov/feg/bymodel/1985_Chevrolet_Blazer.shtml
Don't pull out your ear. The ear wasn't made for this. It could have unpleasant consequences. If you really want to know how far you can pull out your ear, well, as much as it lets you to pull it out.
Assuming you're referring to the AC system, there isn't one... as far as I know, all model years of the Blazer (K5, S10, and the midsize model replacing the S10 Blazer when the full sized Blazer became the Tahoe) used a fixed orifice tube.