Ok so i am planning on hauling rock this summer and until i can purchase a bigger truck i will have to do it with my ranger. How much can my ranger haul? The rear Gawr is 2600lb a and my engin is a 3.0 v6. How many pounds could i pull/haul with my engine

 

What do you mean by "rock"?

Your truck is rated for 500 lbs in the bed.
I'm not sure what you're rated for to tow, the 4.0s were rates for 5,800lbs, so I'd imagine you're rated somewhere in the 3-4,000 lb range. (It will say in your manual).

Now, I've exceeded both those ratings with my truck, but I wouldn't recommend doin that on a regular basis.

 

There is "can" and "may"

"May" is the legal limit for your vehicle, that number will be in the owners manual or in Fords towing webpages.
If you exceed the Legal Limit than you can get a ticket, also you have to leave the vehicle at that location until weight is reduced to Legal limit.
If in an accident, doesn't have to be your fault or even involve the weight you have, your insurance company can just "walk away" leaving you holding the bag.
Fine print in the insurance is vehicle must be operated in a lawful manner.

"Can" is the ability to haul the weight, you "can" usually go above Fords weight rating by as much as 30%, hard on the drive train and hard on the brakes, but you "can" do it.

If you have an automatic the Legal towing weight limit is higher than manual, you must use a 2nd trans cooler, but ALL automatics need a 2nd trans cooler, period.

 

My '94 weighs in at 3308 lbs with a full tank of gas and myself in the truck, the door says the GVW is 4,880. Its a regular cab long bed with a 2.3l 5 speed.

That tells me that mine should have capacity for 1,572 lbs going by the door decal.
Both of mine were ordered as fleet vehicles, with the only option being the radio and A/C. They both have a five leaf spring pack in the rear with a straight helper leaf from the factory.

I just picked up three 3x6 ft 1" thick steel plates at the steel supplier last week. I'd guess the weight of the plates alone was over a ton, roughly 40 lbs per square foot.
Plus I had about 150 lbs of hardware and misc. steel angle iron.
With that weight in the bed, the truck sat dead level. Both of these trucks have done this regularly for 22 years.
A buddy has a 1992 super cab with a shortbed and his truck is bottomed out with two layers of concrete block in the bed. His truck came with the XLT package and single leaf rear springs.

When loading any truck, a little common sense goes a long way too, if you balance the load and keep it the weight as forward as possible the truck will suffer a lot less and carry a lot more. Driving habits will determine how well the truck survives being loaded like that. My two 1994's have 100K and 120K on them and were owned by me since new.