I don't have acess to my trailer to pick up a load of concrete so I kinda have to throw it in the bed. Approximately 4k in the bed. I have a SuperCrew FX4 with a 2.5"lift so I don't think it'll squat to bad. So can I have that much weight in the bed.

 

Absolutly not.
4k is getting up to nearly the weight of the whole truck.
Your payload limit is somewhere in the 1500 to 1800 lbs range +/- depending on the year, motor, tire size etc..
Over loading a lifted truck is really asking for trouble.
Go to the top of this page to articles and specs.
Go to specifications for your year and model and check it all out.
Good luck.

 

Had a ton in mine a few times and it was more than enough, 4K is WAY too much especially when lifted.

 

Guess I'm making 4 trips today

 

better 4 trips worth of time/gas than a new suspension

 

150= Half Ton
250= 3/5 Ton
350=1 ton

Glad you asked, some ppl thing their trucks are indestructible! Thou hast shown great ability to reason and think with thy mind :P Let us know how it goes! have fun with that concrete!

 

Means nothing without pics, but:

I have a trailer I made from a 1975 F150. I now has a wooded box on it with a 9inch Ford Axle with yoke removed. Yeah, weird thing, but the truck was junk and I needed a trailer.....


Anyway, I had to haul a load of sand and I have the scale ticket somewhere, but I was about 150 pounds short of 8,000 pounds of sand in the trailer from the sand pit! I pulled it 7 miles home with NO problems. I still use the trailer today, and nothing is broken from that.

Would NOT NOT NOT recommend it, tough.:

Built FORD tough, indeed!

 

Your trailer experiece means little either without some specs like the lisc. legal gross weight of the trailer etc.
The truck has a design limit and includes the whole truck not just the bed, back half frame and rear.
Big difference.
Pictures are of no value at all in either case.

 

You are very correct: No pics is not much of a story. Should have seen the look on the face of my father-in-law when I came home with that load of sand for his new addition (cement mortar mix sand)!!!!

8000 pounds on one 9inch axle is pretty good! The trailer is about perfectly balanced, and there was not much tongue weight. Maybe 600-700 pounds. It was small enough where my air shocks picked it right up no problem.

The loader at the pit gave me quite a look too!

I am just surprised I didn't blow a tire. They were just 15" load range "C" tires. I think they were rated to about 4000 for the pair??? Something like that. They were a SQUATT'N!!!!

But yes, no pics. I kept the scale ticket, but that means nothing because it doesn't have a pic of the trailer.

Again: DO NOT TRY IT!!! I would not do it again. ( I need my trailer not broken)