Today at KSC in Florida, I saw a brand new 2001?? F150 with I think factory propane setup, on tailgate right under the "F150" it also had "7700", what that means I have no clue, I also counted 7 lugs on the wheels like the F250 standard duty, wonder if Ford has some kind of test deal with KSC on the introduction of their propane powered trucks??

 

My wifes boss recently bought an F150 7700 for their business. It is basically a heavy-half ton... same thing as the light - duty F250... As for the LPG... well I don't know the answer to that... The 7700 that my wifes company bought was a reg.cab long bed xlt that they are going to plow the lots with.

 

Basicly, a 7700 F150 is a heavy duty version of the F150. It is the same as the old F250 light duty which are no longer available with the intrduction of the Super Duty F250.

"The 7700 Payload (Group A) upgrades the GVWR to 7,700 pounds and provides a front Gross Axle Weight Rating on all 4x4 models of 4,150 pounds to accommodate a snowplow (7700 package and snowplow are not available on SuperCrew). A 4.10:1 axle ratio is available with the 7700 package (Group B), which allows for a 15,000-pound Gross Combined Weight Rating on the 4x2 model"

 

Some of these 7700's came with either a bi-fuel prep, CNG or gasoline 5.4L engine. I believe the LPG version is either the bi-fuel engine or an alternative use CNG. I am not sure about how these things work, but I know it's a low emissions vehicle.

The 1999 model year F-250 LD became the 2000 F-150 7700. Exactly alike, but rebadged. That was a marketing strategy to lesson the confusion between the two bodystyles (F-250 Superduty vs. F-250 LD/F-150). Think of the truck as a heavy-half with a payload over 2500 pounds.

-Kerry

 

We have quite a few government trucks here running around on either propane or natural gas. They are 2000 and 2001 model year trucks I think. The trucks run on either LPG (propane) or CNG (natural gas) or on regular gas. There is a switch on the dash that lets you change from gas to alternate fuel. The conversions are done for Ford right after the trucks are built by a company called GFI (I think). Under the hood they look like a normal 5.4 which they are with a bunch of parts sitting on top of the already crowded engine. The LPG or CNG is injected into the engine by modified fuel injectors...basically a ring sorta thing around the normal injector. They use a "Compuvalve" to control the amount of LPG or CNG that gets injected. They run quite well with a slight loss of power on the alternate fuel. Usually the LPG trucks have more power than the CNG trucks due to the LPG having more BTUs in the fuel.