is the old f250 the new f150HD?

I saw an F25o, White, and it had about 1 ft tall by cab length 1 inch indentation along it. Very noticeable and very much looking like "We saved some metal on ugly"

Ford didn't make a 1998 model HD truck. What op saw was basically a heavy duty 150. Ford refered to it as the LD F250.

The 7-lug was essentially a 1/2-ton with a Sterling 10.25 axle with heavy springs out back, and different front hubs (the bearings were the same inside it, but the front hub flange was different to accommodate the 7-lug pattern).

Aside from that, standard F150 parts all around.

Thanks for the replies,It must have been one of the 97 98.
it is rare a badged F250 that looked like a F150 with 7 lugs
No Jimnlin, it had a semi floater

The 8200 GCWR F150 HD has a 4800 RAWR vs the old F250 6000-6100 RAWR that carries the trucks payload.

Texas ATM pretty much has it right. For the 1998 MY there was no F250 Super Duty. There was a late 1997 "classic" F250 Heavy Duty and then the then-new Super Duty came out for the 1999 MY. The 1998 F250 had 7 lug wheels and a heavier frame and suspension but shared the body style with the F150. The 1998 F250 later became the F150HD.

I think that the F250 you saw was from '98 or '99 and was used as an interim bridge between the OBS F250 and F350 to the newer Superduty trucks. The 7lug version was a heavier duty version of the F150, but not close to an F250 in a lot of ways (but it WAS the new F150 body style that was all the rave back then). I would say that it is safe, however, to compare that truck vs an F150 of the same year to a new F150 with max tow and payload packages vs a starndard F150.

Completely different truck with it's own engine base, and completely different body and chasis. There are practically ZERO interchangeable parts. There ARE, however, MANY interchangeable parts (most of them) with the standard F 150. Before the HD F 150 was marketed, Ford had it's predecessor which was called the 7700 series (based on it's increased GVWR of 7700 lb. When the HD came out in 2004 the GVWR moved up to 8200 lb.