8 ft box with 38 HP tractor?

[CobyRupert]

I ran a lighter 6' King Kutter box behind a L3200 (60" track 3k lbs). It did ok for most stuff but not great. I now run a 74" Gannon behind my over 5k 40hp L4060. Much heavier box & works much better.

I assume that big box will be either to heavy or to wide for a 40hp machine by a good margin. Weight & traction means more than HP for a box blade though.

Exactly.
Weight = traction.
Hp = speed

 

[sweettractors]

Exactly.
Weight = traction.
Hp = speed

6 Ft would be best match and 7 ft would me the maximum. As suggested, buy the 8 cheap and resell it at a profit and then buy a 6. Ken Sweet