Here is a list of groos vihicle wieghts. Tell Me it they are lD or HD?And what wieght class 100 250....
I found a 8 lug 74 f250 2wd 390 granny 4 speed- with a measly 6900lbs GVw.!--junker What they have f150 rated more Why is a f150 rate for more wieght than 250 is that just miscalulated?

6050
6250
6300
6600
6900-A f250 extremly light duty I assume it had the big center rear hubs though/ dual pistion calaper
7300
7500
8000 Is what my f250 is
8400
8500
8600
8800
8900 I think it is a 70's F350 SRW
Later
Dustin

 

Engine and axle ratio determine the gvw differences, like an inline 6 in a light duty 3/4 ton can have a gvw of a 1/2 ton, but the brakes are heavier duty than a half, and the spring rate is stronger. Also, the frame is stronger as well.

 

By Federal EPA regulations, heavy duty is defined as above 8500 GVW.

F-150, 250, 350, C-10, K-2500, etc. are all MARKETING designations by the various manufacturers. Tonnage is a compelety obsolete designation that no one in the industry uses anymore. It really stopped being useful after WWII. For exampe, the 2004 F-150 with the 7700 GVW package. What is it? With an unladen weight of lets say 4700, that leaves 3000 for payload. That is one and one half tons, not one half ton.

Jim

 

why would a 390/4 speed be light duty?
I thought that combo was ment to hual a lot of wieght!
So even thogh mine has Dual pistion calapers/ 5-3" wide HD leaf springs 3.73 trac lok and a Np435
witha GVW of 8000lbs it is still LD??
later
Dustin

 

Yep, F150-350 are considered light duty trucks. F450-750 are considered medium duty, and heavy duty are the big rigs.

 

I ment HD as in a crew cab diesel 4x4 SFA D60 350/3500 6spd 4.1 posi dually-my dream truck
sorry for mis informing yall
later
dustin

 

'99-up F350 single rear wheel trucks have a GVWR of 9900 lbs. '87-'97 F350 single rear wheel trucks have a GVWR of 9200 lbs.

Diesel engine, crew cab, or 4x4 has no effect on the GVWR, but it does have alot of effect on the actual scale weight of the truck, and therefore has alot of effect on the payload of the truck. For a diesel engine, add ~700 lbs. For 4x4, add ~300 lbs. For CrewCab, oh I guess add about 300 lbs. As you can see, that's about 1100 lbs less payload than a Reg Cab 2wd gas engine truck.

As an example, my '92 F350 Crew Cab 4x4 long bed single rear wheel gas V8 truck weighs about 6000 lbs completely empty and usually weighs about 6500 lbs in normal driving (gas, people and other stuff I normally carry inside the truck). That leaves me with a usable payload of roughly 2700 lbs. My truck with a diesel engine would have a payload of about 2000 lbs.

A diesel F250 has even less payload, as the truck doesn't weigh much less than an F350 but the GVWR is less (8800 vs 9200 for my year truck). So an '87-'97 F250 SuperCab 4x4 diesel longbed would have a payload of about 1600 lbs, plus the difference in weight between a CrewCab and a SuperCab (F250's weren't available in CrewCab LongBed in those years), which is probably not more than 150 lbs. If the truck has a ShortBed I guess you could gain about 100 lbs of payload, but have less room in the bed to put the extra weight.

F350 Dually's have GVWR's of about 10,000-12,000 lbs, depending on year and chassis options. Dually's usually have about 1500 lbs more payload than a similarly configurated (cab, engine and drive type) single wheel one ton and about 2000 lbs more than a 3/4 ton.

 

> why would a 390/4 speed be light duty?

Because the FT-391 and Clark five speed is considered medium duty along with the much beefier frame in the F-450 and up series.