You could probably let a good deal of air pressure out of the tires. Tire shops will put them at max psi. In the crew cab I run the fronts at 28 and the rears at 21. The C10 is also similar. Lower tire pressure will help with the ride. When I've had one of my trucks at the tire shop, I can tell immediately the difference in the ride after they've aired the tires up all the way.
Our 2500HD Silverado rides a lot better with about 200 pounds of weight at the back of the bed. You could consider something like that as well.
I don't remember what all you've done, but anytime I buy one of these old trucks the first thing I do is buy a new distributor, coil, plugs, and wires. I know it's not a thrifty way of doing things, but for example the 66 C20 will fire right up and run smooth and I haven't touched the carb on it.
This^ I usually find about 7 miles of unused wire up under the dash, and generally the fluids look as though they’ve never been changedFirst thing I do with a used vehicle is a full tune up and fluids. Resets my baseline. Then I can start troubleshooting and repairing.
You can(i.e. should) search for the information here, but basically, the PSI on the sidewall is ONLY for the load listed on the sidewall. The correct pressure is basically linear interpolation between the MAX load (sidewall) for the tire and the ACTUAL weight on it. Do you know the real front/rear weights of the rig?I'm running 55 psi in my tires, so yeah... I bet it would make quite the difference to drop some air out.
Yeah, the battery will die down from just "sitting". It's a pretty terrible combination of (not charging well) + (parasitic draw).Are you sure it’s a parasitic draw? If you’re not charging your battery it won’t take long to kill it….just a thought
Thanks for the tip! No, I don't know those weights. I can tell you that I rarely carry a load in the bed. If I do, it is fairly light. Eventually I am going to put the camper shell back on and am going to build a sleeping platform + camping setup in the bed... but that is a ways away. I'll do some reading.You can(i.e. should) search for the information here, but basically, the PSI on the sidewall is ONLY for the load listed on the sidewall. The correct pressure is basically linear interpolation between the MAX load (sidewall) for the tire and the ACTUAL weight on it. Do you know the real front/rear weights of the rig?
I do that to all my vehiclesI mathed out my pressures like @Blue85 mentioned. I also look at the tire contact patch and shoot for contact nearly across the entire width.
You could check here and see if you can find a vehicle that might be similar for weights: https://ridetech.com/tech/vehicle-weights/