Tracks, what's the difference?

GM, that not quite correct there. The 251 had rubber pads throughout its life. They tried tracks without them in 1944 to save on rubber but these did not work out and they went back to rubber pads. The all metal tracks were in use for about 4 months.

Colonel, those tracks by AFV were the ones in use before the metal tracks were introduced. Of the 4 track types used on the 251, 3 are on the market as AM sets. The only one that is not is the ones introduced in mid 1944 when the all metal ones were withdrawn. But that type you have posted was still in use until the end of the war.

Thanks!! I never saw that wjhen I was searching.

http://www.perthmilitarymodelling.com/reviews/vehicles/misc/251track.htm

Rubber refers to the prototype, which had rubber pads.